PhD Professor Milovan Kubat inspects human remains in the Forensic Identification Center in Zagreb, Croatia, December 8, 2021. Picture taken December 8, 2021. REUTERS/Antonio Bronic 

PhD Professor Milovan Kubat walks next to human remains in the Forensic Identification Center in Zagreb, Croatia, December 8, 2021. Picture taken December 8, 2021. REUTERS/Antonio Bronic TPX IMAGES OF THE DAY 

PhD Professor Milovan Kubat inspect human remains in the Forensic Identification Center in Zagreb, Croatia, December 8, 2021. Picture taken December 8, 2021. REUTERS/Antonio Bronic 

Marija Sestan, who for 30 years searched for her then 21-year-old son Tomislav, poses for the picture in Vukovar, Croatia, December 7, 2021. Picture taken on December 7, 2021. REUTERS/Antonio Bronic 

Croatian soldier is seen next to excavators during digging on newly discovered mass grave with 11 bodies near Vukovar, Croatia, December 6, 2021. Picture taken on December 6, 2021. REUTERS/Antonio Bronic 

Croatian soldier is seen next to excavators during digging on newly discovered mass grave with 11 bodies near Vukovar, Croatia, December 6, 2021. Picture taken on December 6, 2021. REUTERS/Antonio Bronic 

Police line is seen on location of newly discovered mass grave with 11 bodies near Vukovar, Croatia, December 6, 2021. Picture taken on December 6, 2021. REUTERS/Antonio Bronic 

Croatian soldier is seen next to excavators during digging on newly discovered mass grave with 11 bodies near Vukovar, Croatia, December 6, 2021. Picture taken on December 6, 2021. REUTERS/Antonio Bronic 

Excavators are seen digging on newly discovered mass grave with 11 bodies near Vukovar, Croatia, December 6, 2021. Picture taken December 6, 2021. Picture taken with a drone. REUTERS/Antonio Bronic 

Croatian soldier is seen next to excavators during digging on newly discovered mass grave with 11 bodies near Vukovar, Croatia, December 6, 2021. Picture taken on December 6, 2021. REUTERS/Antonio Bronic 

General view of Vukovar city, Croatia, December 6, 2021. Picture taken December 6, 2021. Picture taken with a drone. REUTERS/Antonio Bronic 

People walk in a remembrance procession during a ceremony to mark the 30th anniversary of Vukovar's fall, in Vukovar, Croatia, November 18, 2021. REUTERS/Antonio Bronic 

A man walks in a remembrance procession next to a damaged house, during a ceremony to mark the 30th anniversary of Vukovar's fall, in Vukovar, Croatia, November 18, 2021. REUTERS/Antonio Bronic 

People walk in a remembrance procession during a ceremony to mark the 30th anniversary of Vukovar's fall, in Vukovar, Croatia, November 18, 2021. REUTERS/Antonio Bronic 

A woman lights a candle at a grave yard during a ceremony to mark the 30th anniversary of Vukovar's fall, in Vukovar, Croatia, November 18, 2021. REUTERS/Antonio Bronic 

A man lights a candle at a grave yard during a ceremony to mark the 30th anniversary of Vukovar's fall, in Vukovar, Croatia, November 18, 2021. REUTERS/Antonio Bronic 

A woman lights a candle at a grave yard during a ceremony to mark the 30th anniversary of Vukovar's fall, in Vukovar, Croatia, November 18, 2021. REUTERS/Antonio Bronic 

Hangars at Velepromet makeshift camp for Croats during the 1991-95 war of independence from Yugoslavia, are seen in Vukovar, east Croatia, April 19, 2015. Picture taken April 19, 2015. REUTERS/Antonio Bronic 

A man looks at hangars at Velepromet makeshift camp for Croats during the 1991-95 war of independence from Yugoslavia, in Vukovar, east Croatia, April 19, 2015. Picture taken April 19, 2015. REUTERS/Antonio Bronic 

Ruzica Barbaric, 63, who said she was raped during the 1991-95 war of independence from Yugoslavia, shows pictures of saints in Vukovar, east Croatia, April 19, 2015. Croatia's parliament adopted a law on May 29 granting compensation to rape victims in the 1991-95 war of independence from Yugoslavia. The victims, whose exact number remains unknown, will receive a one-off payment of 100,000 kuna ($14,504), and a monthly allowance of 2,500 kuna. They will also be entitled to free counselling, legal and medical aid. Picture taken April 19, 2015. REUTERS/Antonio Bronic 

Ruzica Barbaric, 63, who said she was raped during the 1991-95 war of independence from Yugoslavia, poses for a picture in Vukovar, east Croatia, April 19, 2015. Croatia's parliament adopted a law on May 29 granting compensation to rape victims in the 1991-95 war of independence from Yugoslavia. The victims, whose exact number remains unknown, will receive a one-off payment of 100,000 kuna ($14,504), and a monthly allowance of 2,500 kuna. They will also be entitled to free counselling, legal and medical aid. Picture taken April 19, 2015. REUTERS/Antonio Bronic 

Verica Martinovic, 55, who said she was raped during the 1991-95 war of independence from Yugoslavia, poses for a picture in Vukovar, east Croatia, April 19, 2015. Croatia's parliament adopted a law on May 29 granting compensation to rape victims in the 1991-95 war of independence from Yugoslavia. The victims, whose exact number remains unknown, will receive a one-off payment of 100,000 kuna ($14,504), and a monthly allowance of 2,500 kuna. They will also be entitled to free counselling, legal and medical aid. Picture taken April 19, 2015. REUTERS/Antonio Bronic 

Snjezana Maljak, 46, who said she was raped during the 1991-95 war of independence from Yugoslavia, poses for a picture in Vukovar, east Croatia, April 19, 2015. Croatia's parliament adopted a law on May 29 granting compensation to rape victims in the 1991-95 war of independence from Yugoslavia. The victims, whose exact number remains unknown, will receive a one-off payment of 100,000 kuna ($14,504), and a monthly allowance of 2,500 kuna. They will also be entitled to free counselling, legal and medical aid. Picture taken April 19, 2015. REUTERS/Antonio Bronic 

Croatian war veterans watch the television broadcast of the International Court of Justice's (ICJ) verdict on genocide during the Balkan wars in Vukovar February 3, 2015. The United Nations' highest court on Tuesday ruled that neither Croatia nor Serbia committed genocide against each other's populations during the Balkan wars that followed the collapse of Yugoslavia in the 1990s. Peter Tomka, president of the ICJ, said many crimes had been committed by both countries' forces during the conflict, but that the intent to commit genocide -- by "destroying a population in whole or in part" -- had not been proven against either country. REUTERS/Antonio Bronic (CROATIA - Tags: POLITICS) 

A man smokes as he watches the International Court of Justice's (ICJ) verdict on genocide during the Balkan wars in Vukovar February 3, 2015. The United Nations' highest court on Tuesday ruled that neither Croatia nor Serbia committed genocide against each other's populations during the Balkan wars that followed the collapse of Yugoslavia in the 1990s. Peter Tomka, president of the ICJ, said many crimes had been committed by both countries' forces during the conflict, but that the intent to commit genocide -- by "destroying a population in whole or in part" -- had not been proven against either country. REUTERS/Antonio Bronic (CROATIA - Tags: POLITICS) 

Some of the 938 crosses in memoriam to 938 victims killed in Vukovar are seen at a memorial cemetery in Vukovar February 28, 2014. The hearings in the Croatia-Serbia genocide trials before the International Court of Justice in The Hague are scheduled to start on March 3, in which the court will examine Croatia's accusation that Serbia committed genocide in the Croatian 1991-95 independence war. Croatia's lawsuit against Serbia, filed in 1999, seeks reparations from Serbia on the grounds that the Belgrade authorities were liable for ethnic cleansing committed against Croatian citizens during Croatia's four-year independence war against rebel Serb minority backed by Belgrade that claimed some 20,000 lives. Picture taken February 28, 2014. REUTERS/Antonio Bronic (CROATIA - Tags: SOCIETY CONFLICT POLITICS TPX IMAGES OF THE DAY) 

A man looks at pictures of victims killed by Yugoslavia's national Army and Serbia's paratroops in the 1991 massacre of non-Serbs in the eastern Croatian town of Vukovar on display at the Ovcara Memorial Centre in Vukovar February 28, 2014. The hearings in the Croatia-Serbia genocide trials before the International Court of Justice in The Hague are scheduled to start on March 3, in which the court will examine Croatia's accusation that Serbia committed genocide in the Croatian 1991-95 independence war. Croatia's lawsuit against Serbia, filed in 1999, seeks reparations from Serbia on the grounds that the Belgrade authorities were liable for ethnic cleansing committed against Croatian citizens during Croatia's four-year independence war against rebel Serb minority backed by Belgrade that claimed some 20,000 lives. Picture taken February 28, 2014. REUTERS/Antonio Bronic (CROATIA - Tags: SOCIETY CONFLICT POLITICS) 

A man looks at pictures of victims killed by Yugoslavia's national Army and Serbia's paratroops in the 1991 massacre of non-Serbs in the eastern Croatian town of Vukovar on display at the Ovcara Memorial Centre in Vukovar February 28, 2014. The hearings in the Croatia-Serbia genocide trials before the International Court of Justice in The Hague are scheduled to start on March 3, in which the court will examine Croatia's accusation that Serbia committed genocide in the Croatian 1991-95 independence war. Croatia's lawsuit against Serbia, filed in 1999, seeks reparations from Serbia on the grounds that the Belgrade authorities were liable for ethnic cleansing committed against Croatian citizens during Croatia's four-year independence war against rebel Serb minority backed by Belgrade that claimed some 20,000 lives. Picture taken February 28, 2014. REUTERS/Antonio Bronic (CROATIA - Tags: SOCIETY CONFLICT POLITICS) 

Pictures of victims killed by Yugoslavia's national Army and Serbia's paratroops in the 1991 massacre of non-Serbs in the eastern Croatian town of Vukovar are displayed in the Ovcara Memorial Centre in Vukovar February 28, 2014. The hearings in the Croatia-Serbia genocide trials before the International Court of Justice in The Hague are scheduled to start on March 3, in which the court will examine Croatia's accusation that Serbia committed genocide in the Croatian 1991-95 independence war. Croatia's lawsuit against Serbia, filed in 1999, seeks reparations from Serbia on the grounds that the Belgrade authorities were liable for ethnic cleansing committed against Croatian citizens during Croatia's four-year independence war against rebel Serb minority backed by Belgrade that claimed some 20,000 lives. Picture taken February 28, 2014. REUTERS/Antonio Bronic (CROATIA - Tags: SOCIETY CONFLICT POLITICS) 

Personal items of victims killed by Yugoslavia's national Army and Serbia's paratroops in the 1991 massacre of non-Serbs in the eastern Croatian town of Vukovar are displayed in the Ovcara Memorial Centre in Vukovar February 28, 2014. The hearings in the Croatia-Serbia genocide trials before the International Court of Justice in The Hague are scheduled to start on March 3, in which the court will examine Croatia's accusation that Serbia committed genocide in the Croatian 1991-95 independence war. Croatia's lawsuit against Serbia, filed in 1999, seeks reparations from Serbia on the grounds that the Belgrade authorities were liable for ethnic cleansing committed against Croatian citizens during Croatia's four-year independence war against rebel Serb minority backed by Belgrade that claimed some 20,000 lives. Picture taken February 28, 2014. REUTERS/Antonio Bronic (CROATIA - Tags: SOCIETY CONFLICT POLITICS) 

Rosaries are displayed at the Ovcara mass grave site near Vukovar February 28, 2014. Ovcara is the biggest mass grave in Croatia where hundreds of Croatians were killed after Serb forces captured the town of Vukovar on November 18, 1991 during the 1991-1995 Serbo - Croatian war. The hearings in the Croatia-Serbia genocide trials before the International Court of Justice in The Hague are scheduled to start on March 3, in which the court will examine Croatia's accusation that Serbia committed genocide in the Croatian 1991-95 independence war. Croatia's lawsuit against Serbia, filed in 1999, seeks reparations from Serbia on the grounds that the Belgrade authorities were liable for ethnic cleansing committed against Croatian citizens during Croatia's four-year independence war against rebel Serb minority backed by Belgrade that claimed some 20,000 lives. Picture taken February 28, 2014. REUTERS/Antonio Bronic (CROATIA - Tags: SOCIETY CONFLICT POLITICS) 

Monument to all fallen are seen at the Ovcara mass grave site near Vukovar February 28, 2014. Ovcara is the biggest mass grave in Croatia where hundreds of Croatians were killed after Serb forces captured the town of Vukovar on November 18, 1991 during the 1991-1995 Serbo - Croatian war. The hearings in the Croatia-Serbia genocide trials before the International Court of Justice in The Hague are scheduled to start on March 3, in which the court will examine Croatia's accusation that Serbia committed genocide in the Croatian 1991-95 independence war. Croatia's lawsuit against Serbia, filed in 1999, seeks reparations from Serbia on the grounds that the Belgrade authorities were liable for ethnic cleansing committed against Croatian citizens during Croatia's four-year independence war against rebel Serb minority backed by Belgrade that claimed some 20,000 lives. Picture taken February 28, 2014. REUTERS/Antonio Bronic (CROATIA - Tags: SOCIETY CONFLICT POLITICS) 

Rosaries are displayed at the Ovcara mass grave site near Vukovar February 28, 2014. Ovcara is the biggest mass grave in Croatia where hundreds of Croatians were killed after Serb forces captured the town of Vukovar on November 18, 1991 during the 1991-1995 Serbo - Croatian war. The hearings in the Croatia-Serbia genocide trials before the International Court of Justice in The Hague are scheduled to start on March 3, in which the court will examine Croatia's accusation that Serbia committed genocide in the Croatian 1991-95 independence war. Croatia's lawsuit against Serbia, filed in 1999, seeks reparations from Serbia on the grounds that the Belgrade authorities were liable for ethnic cleansing committed against Croatian citizens during Croatia's four-year independence war against rebel Serb minority backed by Belgrade that claimed some 20,000 lives. Picture taken February 28, 2014. REUTERS/Antonio Bronic (CROATIA - Tags: SOCIETY CONFLICT POLITICS) 

Bullet casings are seen on the floor in the Ovcara Memorial Centre in Vukovar February 28, 2014. The hearings in the Croatia-Serbia genocide trials before the International Court of Justice in The Hague are scheduled to start on March 3, in which the court will examine Croatia's accusation that Serbia committed genocide in the Croatian 1991-95 independence war. Croatia's lawsuit against Serbia, filed in 1999, seeks reparations from Serbia on the grounds that the Belgrade authorities were liable for ethnic cleansing committed against Croatian citizens during Croatia's four-year independence war against rebel Serb minority backed by Belgrade that claimed some 20,000 lives. Picture taken February 28, 2014. REUTERS/Antonio Bronic (CROATIA - Tags: SOCIETY CONFLICT POLITICS) 

Pictures of victims killed by Yugoslavia's national Army and Serbia's paratroops in the 1991 massacre of non-Serbs in the eastern Croatian town of Vukovar are displayed in the Ovcara Memorial Center in Vukovar February 28, 2014. The hearings in the Croatia-Serbia genocide trials before the International Court of Justice in The Hague are scheduled to start on March 3, in which the court will examine Croatia's accusation that Serbia committed genocide in the Croatian 1991-95 independence war. Croatia's lawsuit against Serbia, filed in 1999, seeks reparations from Serbia on the grounds that the Belgrade authorities were liable for ethnic cleansing committed against Croatian citizens during Croatia's four-year independence war against rebel Serb minority backed by Belgrade that claimed some 20,000 lives. Picture taken February 28, 2014. REUTERS/Antonio Bronic (CROATIA - Tags: SOCIETY CONFLICT POLITICS) 

Demonstrators against the use of Serbian Cyrilic script on street signs in the city of Vukovar carry boxes as they collect signatures to call for a referendum on the issue, during a demonstration in downtown Zagreb December 16, 2013. Croatia already has bilingual signs in Croatian and Italian, but the issue of Serb language and script is much more sensitive in the small republic still traumatised by the 1990s war. REUTERS/Antonio Bronic (CROATIA - Tags: POLITICS CIVIL UNREST) 

Demonstrators against the use of Serbian Cyrilic script on street signs in the city of Vukovar protest in downtown Zagreb Decemeber 16, 2013. Croatia has bilingual signs, in Croatian and Italian, but the issue of Serb language and script is much more sensitive in a small republic still traumatised by the 1990s war. The banner on top reads, "Introduction of Cyrillic to Serbian way. Vukovar - SAO Krajina". The SAO (Serbian Autonomous Region) of Krajina was a self-proclaimed republic set up by Serbians within the borders of modern-day Croatia during the 1990s. REUTERS/Antonio Bronic (CROATIA - Tags: POLITICS CIVIL UNREST) 

Demonstrators against the use of Serbian Cyrilic script in street signs in the city of Vukovar, carry boxes as they collect signatures to call for a referendum on the issue during a demonstration in downtown Zagreb December 16, 2013. Croatia already has bilingual signs in Croatian and Italian, but the issue of Serb language and script is much more sensitive in the small republic still traumatised by the 1990s war. REUTERS/Antonio Bronic (CROATIA - Tags: CIVIL UNREST POLITICS) 

Former generals Mladen Markac (L), Ivan Cermak (C) and Ante Gotovina (R) attend a ceremony to mark the 22th anniversary of Vukovar's fall, in downtown Vukovar November 18, 2013. The Danube town of Vukovar was entirely destroyed 22 years ago by Serb paramilitary forces backed by units of the former Yugoslav army at the beginning of Croatia's 1991-95 independence war. REUTERS/Antonio Bronic (CROATIA - Tags: ANNIVERSARY MILITARY SOCIETY CONFLICT) 

People carry a giant Croatian national flag during a ceremony to mark the 22th anniversary of Vukovar's fall, in downtown Vukovar November 18, 2013. The Danube town of Vukovar was entirely destroyed 22 years ago by Serb paramilitary forces backed by units of the former Yugoslav army at the beginning of Croatia's 1991-95 independence war. REUTERS/Antonio Bronic (CROATIA - Tags: CONFLICT ANNIVERSARY SOCIETY) 

People carry a Croatian national flag during a ceremony to mark the 22th anniversary of Vukovar's fall, in downtown Vukovar November 18, 2013. The Danube town of Vukovar was entirely destroyed 22 years ago by Serb paramilitary forces backed by units of the former Yugoslav army at the beginning of Croatia's 1991-95 independence war. REUTERS/Antonio Bronic (CROATIA - Tags: CONFLICT ANNIVERSARY SOCIETY) 

A man carries a flag during a ceremony to mark the 22th anniversary of Vukovar's fall, in downtown Vukovar November 18, 2013. The Danube town of Vukovar was entirely destroyed 22 years ago by Serb paramilitary forces backed by units of the former Yugoslav army at the beginning of Croatia's 1991-95 independence war. The words on the flag reads: "Association of Croatian Homeland War Volunteers 1990". REUTERS/Antonio Bronic (CROATIA - Tags: CONFLICT ANNIVERSARY SOCIETY) 

Croatian President Ivo Josipovic (C) talks to the media with Prime Minister Zoran Milanovic (R) during a ceremony to mark the 22th anniversary of Vukovar's fall, in downtown Vukovar November 18, 2013. The Danube town of Vukovar was entirely destroyed 22 years ago by Serb paramilitary forces backed by units of the former Yugoslav army at the beginning of Croatia's 1991-95 independence war. REUTERS/Antonio Bronic (CROATIA - Tags: CONFLICT ANNIVERSARY SOCIETY) 

A girl lights a candle at Vukovar Memorial, ahead of the 22nd anniversary of the Vukovar Massacre November 17, 2013. The massacre was a war crime that occurred between November 20 and 21, 1991 at Ovcara, near the city of Vukovar. A mostly Croatian group of 264 people, civilians included, were murdered by members of the Serb militias after the Yugoslav People's Army (JNA) withdrawal from Ovcara, at the end of the Battle of Vukovar. REUTERS/Antonio Bronic (CROATIA - Tags: CONFLICT ANNIVERSARY SOCIETY) 

A man prays in front of a cross statue in downtown Vukovar, ahead of the 22nd anniversary of the Vukovar Massacre November 17, 2013. The massacre was a war crime that occurred between November 20 and 21, 1991 at Ovcara, near the city of Vukovar. A mostly Croatian group of 264 people, civilians included, were murdered by members of the Serb militias after the Yugoslav People's Army (JNA) withdrawal from Ovcara, at the end of the Battle of Vukovar. REUTERS/Antonio Bronic (CROATIA - Tags: CONFLICT ANNIVERSARY SOCIETY) 

A man prays in front of a cross statue in downtown Vukovar, ahead of the 22nd anniversary of the Vukovar Massacre November 17, 2013. The massacre was a war crime that occurred between November 20 and 21, 1991 at Ovcara, near the city of Vukovar. A mostly Croatian group of 264 people, civilians included, were murdered by members of the Serb militias after the Yugoslav People's Army (JNA) withdrawal from Ovcara, at the end of the Battle of Vukovar. REUTERS/Antonio Bronic (CROATIA - Tags: CONFLICT ANNIVERSARY SOCIETY) 

A man takes a picture of a destroyed house in downtown Vukovar, ahead of the 22nd anniversary of the Vukovar Massacre November 17, 2013. The massacre was a war crime that occurred between November 20 and 21, 1991 at Ovcara, near the city of Vukovar. A mostly Croatian group of 264 people, civilians included, were murdered by members of the Serb militias after the Yugoslav People's Army (JNA) withdrawal from Ovcara, at the end of the Battle of Vukovar. REUTERS/Antonio Bronic (CROATIA - Tags: CONFLICT ANNIVERSARY SOCIETY) 

People walk past a destroyed house in downtown Vukovar ahead of the 22nd anniversary of the Vukovar Massacre November 17, 2013. The massacre was a war crime that occurred between November 20 and 21, 1991 at Ovcara, near the city of Vukovar. A mostly Croatian group of 264 people, civilians included, were murdered by members of the Serb militias after the Yugoslav People's Army (JNA) withdrawal from Ovcara, at the end of the Battle of Vukovar. REUTERS/Antonio Bronic (CROATIA - Tags: CONFLICT ANNIVERSARY SOCIETY) 

Crosses are seen during sunset at Vukovar Memorial, ahead of the 22nd anniversary of the Vukovar Massacre November 17, 2013. The massacre was a war crime that occurred between November 20 and 21, 1991 at Ovcara, near the city of Vukovar. A mostly Croatian group of 264 people, civilians included, were murdered by members of the Serb militias after the Yugoslav People's Army (JNA) withdrawal from Ovcara, at the end of the Battle of Vukovar. REUTERS/Antonio Bronic (CROATIA - Tags: CONFLICT ANNIVERSARY SOCIETY) 

A woman lights a candle in front of riot policemen during a protest against signs in Serb Cyrillic script placed in the city of Vukovar September 3, 2013. Several hundred Croat protesters tore down the signs that were put up on Monday in the Croatian city devastated during the independence war with Serb-dominated Yugoslavia, state radio said. The signs were put up in Vukovar in line with a law in the newest European Union member that makes bilingual signs mandatory in any area where more than one third of the local population belongs to an ethnic minority group. Vukovar was reduced to rubble during a three-month siege by Yugoslav and Serbian forces in late 1991. Though rebuilt, the town remains poor, with high unemployment and ethnic tensions. REUTERS/Antonio Bronic (CROATIA - Tags: CIVIL UNREST POLITICS SOCIETY) 

A woman gestures in support of demonstrators during a protest against signs in Serb Cyrillic script placed in the city of Vukovar September 3, 2013. Several hundred Croat protesters tore down the signs that were put up on Monday in the Croatian city devastated during the independence war with Serb-dominated Yugoslavia, state radio said. The signs were put up in Vukovar in line with a law in the newest European Union member that makes bilingual signs mandatory in any area where more than one third of the local population belongs to an ethnic minority group. Vukovar was reduced to rubble during a three-month siege by Yugoslav and Serbian forces in late 1991. Though rebuilt, the town remains poor, with high unemployment and ethnic tensions. REUTERS/Antonio Bronic (CROATIACIVIL SOCIETY - Tags: CIVIL UNREST POLITICS SOCIETY TPX IMAGES OF THE DAY) 

Riot policemen protect a bilingual sign on a building during a protest against signs in Serb Cyrillic script placed in the city of Vukovar September 3, 2013. Several hundred Croat protesters tore down the signs that were put up on Monday in the Croatian city devastated during the independence war with Serb-dominated Yugoslavia, state radio said. The signs were put up in Vukovar in line with a law in the newest European Union member that makes bilingual signs mandatory in any area where more than one third of the local population belongs to an ethnic minority group. Vukovar was reduced to rubble during a three-month siege by Yugoslav and Serbian forces in late 1991. Though rebuilt, the town remains poor, with high unemployment and ethnic tensions. REUTERS/Antonio Bronic (CROATIA - Tags: CIVIL UNREST POLITICS SOCIETY) 

A man carries a Croatian flag during a protest against signs in Serb Cyrillic script placed in the city of Vukovar September 3, 2013. Several hundred Croat protesters tore down the signs that were put up on Monday in the Croatian city devastated during the independence war with Serb-dominated Yugoslavia, state radio said. The signs were put up in Vukovar in line with a law in the newest European Union member that makes bilingual signs mandatory in any area where more than one third of the local population belongs to an ethnic minority group. Vukovar was reduced to rubble during a three-month siege by Yugoslav and Serbian forces in late 1991. Though rebuilt, the town remains poor, with high unemployment and ethnic tensions. REUTERS/Antonio Bronic (CROATIA - Tags: CIVIL UNREST POLITICS SOCIETY) 

Croatian Army and police officers walk with flags in front of a column of thousands of Croats marching through fog in Vukovar November 18, 2011, during a ceremony to mark the 20th anniversary of Vukovar's fall. The Danube town of Vukovar was entirely destroyed 20 years ago by Serb paramilitary forces backed by units of the former Yugoslav army at the beginning of Croatia's 1991-95 independence war. The picture was taken through glass at a bus station. REUTERS/Nikola Solic (CROATIA - Tags: ANNIVERSARY POLITICS MILITARY CONFLICT TPX IMAGES OF THE DAY) 

A Croatian woman walks in front of a march through the streets of Vukovar during a ceremony to mark the 20th anniversary of Vukovar's fall November 18, 2011. The Danube town of Vukovar was entirely destroyed 20 years ago by Serb paramilitary forces backed by units of the former Yugoslav army at the beginning of Croatia's 1991-95 independence war. REUTERS/Nikola Solic (CROATIA - Tags: ANNIVERSARY CONFLICT) 

Members of the Croatian Army and police officers walks with flags as they lead Croats marching through the streets of Vukovar during a ceremony to mark the 20th anniversary of Vukovar's fall on November 18, 2011. The Danube town of Vukovar was entirely destroyed 20 years ago by Serb paramilitary forces backed by units of the former Yugoslav army at the beginning of Croatia's 1991-95 independence war. REUTERS/Nikola Solic (CROATIA - Tags: ANNIVERSARY POLITICS) 

Croatian majorettes walk with a flag through the streets of Vukovar during a ceremony to mark the 20th anniversary of Vukovar's fall November 18, 2011. The Danube town of Vukovar was entirely destroyed 20 years ago by Serb paramilitary forces backed by units of the former Yugoslav army at the beginning of Croatia's 1991-95 independence war. REUTERS/Nikola Solic (CROATIA - Tags: ANNIVERSARY CONFLICT) 

Croatian majorettes walk with the national flag through the streets of Vukovar during a ceremony to mark the 20th anniversary of Vukovar's fall November 18, 2011. The Danube town of Vukovar was entirely destroyed 20 years ago by Serb paramilitary forces backed by units of the former Yugoslav army at the beginning of Croatia's 1991-95 independence war. REUTERS/Nikola Solic (CROATIA - Tags: ANNIVERSARY POLITICS) 

Croatian majorettes stand with the national flag as thousands of Croats march to the central cemetery of Vukovar during a ceremony to mark the 20th anniversary of Vukovar's fall November 18, 2011. The Danube town of Vukovar was entirely destroyed 20 years ago by Serb paramilitary forces backed by units of the former Yugoslav army at the beginning of Croatia's 1991-95 independence war. REUTERS/Nikola Solic (CROATIA - Tags: ANNIVERSARY CONFLICT) 

Croatian Army and police officers walk with flags in front of a column of thousands of Croats marching through the streets of Vukovar November 18, 2011, during a ceremony to mark the 20th anniversary of Vukovar's fall. The Danube town of Vukovar was entirely destroyed 20 years ago by Serb paramilitary forces backed by units of the former Yugoslav army at the beginning of Croatia's 1991-95 independence war. REUTERS/Nikola Solic (CROATIA - Tags: ANNIVERSARY POLITICS CONFLICT MILITARY)