Ukrainian servicemen take their weapons and flak jackets from an armoured fighting vehicle after they returned to a position from an assignment, amid Russia's attack on Ukraine, in a frontline in Mykolaiv region, Ukraine November 4, 2022. REUTERS/Valentyn Ogirenko 

Ukrainian servicemen take their weapon and flak jackets from an armoured fighting vehicle after they returned to a position from an assignment, amid Russia's attack on Ukraine, in a frontline in Mykolaiv region, Ukraine November 4, 2022. REUTERS/Valentyn Ogirenko 

A Ukrainian serviceman takes his weapon and a flak jacket from an armoured fighting vehicle after he returned to a position from an assignment, amid Russia's attack on Ukraine, in a frontline in Mykolaiv region, Ukraine November 4, 2022. REUTERS/Valentyn Ogirenko 

A Ukrainian serviceman takes his flak jacket from a self-propelled howitzer, amid Russia's attack on Ukraine, on a frontline in Mykolaiv region, Ukraine November 2, 2022. REUTERS/Valentyn Ogirenko 

Flak jackets and protective helmets for children are seen in an office of Lviv Defence Cluster NGO, which manufactures them, as Russia's attack on Ukraine continues, in Lviv, Ukraine October 28, 2022. REUTERS/Roman Baluk 

Maksym Plyokhov, board chairman of Lviv Defence Cluster NGO, that manufactures flak jackets and protective helmets for children, shows their production in his office, as Russia's attack on Ukraine continues, in Lviv, Ukraine October 28, 2022. REUTERS/Roman Baluk 

Maksym Plyokhov, board chairman of Lviv Defence Cluster NGO, that manufactures flak jackets and protective helmets for children, shows their production in his office, as Russia's attack on Ukraine continues, in Lviv, Ukraine October 28, 2022. REUTERS/Roman Baluk 

Mariana Chugunova, an internally displaced person from Kharkiv, tries a protective suit on her daughter Anzhelika in an office of Lviv Defence Cluster NGO, which manufactures them, as Russia's attack on Ukraine continues, in Lviv, Ukraine October 28, 2022. REUTERS/Roman Baluk 

An employee wearing a flak jacket operates a combine during a wheat harvesting, as Russia's attack on Ukraine continues, Zaporizhzhia region, Ukraine July 29, 2022. REUTERS/Dmytro Smolienko 

A Ukrainian soldier puts on his flak jacket in a trench, as Russia's attack on Ukraine continues, in Mykolaiv region, Ukraine June 12, 2022. REUTERS/Edgar Su 

Protestors holding placards depicting press flak jackets, stand outside the entrance to Downing Street during a pro-Palestinian demonstration in London, Britain, May 14, 2022. REUTERS/Henry Nicholls 

Protestors holding placards depicting press flak jackets, stand outside the entrance to Downing Street during a pro-Palestinian demonstration in London, Britain, May 14, 2022. REUTERS/Henry Nicholls 

Protestors holding placards depicting press flak jackets, stand outside the entrance to Downing Street during a pro-Palestinian demonstration in London, Britain, May 14, 2022. REUTERS/Henry Nicholls 

Protestors holding placards depicting press flak jackets with names written on, stand outside the entrance to Downing Street during a pro-Palestinian demonstration in London, Britain, May 14, 2022. REUTERS/Henry Nicholls 

Protestors holding placards depicting press flak jackets, stand outside the entrance to Downing Street during a pro-Palestinian demonstration in London, Britain, May 14, 2022. REUTERS/Henry Nicholls 

Mourners, including journalists, carry the body and flak jacket of Al Jazeera reporter Shireen Abu Akleh, who was killed during an Israeli raid in Jenin, in the Israeli-occupied West Bank May 11, 2022. REUTERS/Mohamad Torokman REFILE - CORRECTING CIRCUMSTANCES OF DEATH INFORMATION 

Walid Al-Omari, Al Jazeera's Palestine bureau chief, holds the flak jacket that Al Jazeera reporter Shireen Abu Akleh was wearing when she was killed during an Israeli raid in Jenin, in the Israeli-occupied West Bank May 11, 2022. REUTERS/Mohamad Torokman REFILE - CORRECTING CIRCUMSTANCES OF DEATH INFORMATION 

Ammunition is seen on a flak jacket of a Ukrainian servicemen, as Russia's attack on Ukraine continues, at a position in Luhansk Region, Ukraine April 26, 2022. REUTERS/Serhii Nuzhnenko 

Volunteers assemble flak jackets in a warehouse as a part of a shipment to Ukraine, following Russia's invasion of Ukraine, in Prague, Czech Republic, March 2, 2022. Picture taken March 2, 2022. REUTERS/Eva Korinkova 

Volunteers assemble flak jackets in a warehouse as a part of a shipment to Ukraine, following Russia's invasion of Ukraine, in Prague, Czech Republic, March 2, 2022. Picture taken March 2, 2022. REUTERS/Eva Korinkova 

Volunteers assemble flak jackets in a warehouse as a part of a shipment to Ukraine, following Russia's invasion of Ukraine, in Prague, Czech Republic, March 2, 2022. Picture taken March 2, 2022. REUTERS/Eva Korinkova 

Volunteers assemble flak jackets in a warehouse as a part of a shipment to Ukraine, following Russia's invasion of Ukraine, in Prague, Czech Republic, March 2, 2022. Picture taken March 2, 2022. REUTERS/Eva Korinkova 

Volunteers assemble flak jackets in a warehouse as a part of a shipment to Ukraine, following Russia's invasion of Ukraine, in Prague, Czech Republic, March 2, 2022. Picture taken March 2, 2022. REUTERS/Eva Korinkova 

Volunteers assemble flak jackets in a warehouse as a part of a shipment to Ukraine, following Russia's invasion of Ukraine, in Prague, Czech Republic, March 2, 2022. Picture taken March 2, 2022. REUTERS/Eva Korinkova 

Volunteers assemble flak jackets in a warehouse as a part of a shipment to Ukraine, following Russia's invasion of Ukraine, in Prague, Czech Republic, March 2, 2022. Picture taken March 2, 2022. REUTERS/Eva Korinkova 

Volunteers assemble flak jackets in a warehouse as a part of a shipment to Ukraine, following Russia's invasion of Ukraine, in Prague, Czech Republic, March 2, 2022. Picture taken March 2, 2022. REUTERS/Eva Korinkova 

A forensic technician takes a photo of a flak jacket at a crime scene following an assassination attempt of Mexico City's police chief Omar Garcia Harfuch, at the upscale neighborhood of Lomas de Chapultepec, in Mexico City, Mexico June 26, 2020. REUTERS/Luis Cortes 

A police investigator inspects a flak jacket with magazines at a crime scene following an assassination attempt of Mexico City's police chief Omar Garcia Harfuch, at the upscale neighborhood of Lomas de Chapultepec, in Mexico City, Mexico June 26, 2020. REUTERS/Luis Cortes 

A flak jacket with magazines is seen at a crime scene following an assassination attempt of Mexico City's police chief Omar Garcia Harfuch, at the upscale neighborhood of Lomas de Chapultepec, in Mexico City, Mexico June 26, 2020. REUTERS/Luis Cortes 

A member of the Iraqi security forces stands guard at an oil burner in al-Zubair oil field, near Basra, Iraq April 21, 2020. REUTERS/Essam al-Sudani 

Paris police bomb squad inspects a car in Champs Elysees avenue in Paris, France, September 16, 2018. REUTERS/Gonzalo Fuentes 

Volunteer members of a primary care response team, huddle together during clashes with security forces at a rally against Venezuela's President Nicolas Maduro in Caracas, Venezuela, April 26, 2017. In Caracas, around 120 medicine students, doctors, and volunteers have revived a primary care response team first created during 2014's bout of anti-government protests. While they wear white helmets with a green cross, none wear flak jackets and some resort to wearing goggles to protect themselves from tear gas. Their equipment has nearly all been donated or bought by the volunteers themselves, and they've had to create makeshift neck braces from shoes, belts, and hats. REUTERS/Carlos Garcia Rawlins/File Photo SEARCH "POY VENEZUELA" FOR THIS STORY. SEARCH "REUTERS POY" FOR ALL BEST OF 2017 PACKAGES. TPX IMAGES OF THE DAY. 

A woman holds a flak jacket of a soldier who she said died rescuing people from the flash flood at Pentagon, Regent town, Sierra Leone August 18, 2017. REUTERS/Afolabi Sotunde 

Shi'ite fighters from Saraya al-Salam, who are loyal to radical cleric Muqtada al-Sadr, gather at site of a suicide attack at the entrance of the Shi'ite Mausoleum of Sayid Mohammed bin Ali al-Hadi in Balad, north of Baghdad, Iraq, July 8, 2016. REUTERS/Thaier Al-Sudani TPX IMAGES OF THE DAY

U.S. volunteer John Cole, 23, carries his assault rifle at a checkpoint in Makhmour, Iraq April 17, 2016. REUTERS/Ahmed Jadallah

U.S. volunteer John Cole (C), 23, carries his assault rifle at a checkpoint in Makhmour, Iraq April 17, 2016. REUTERS/Ahmed Jadallah TPX IMAGES OF THE DAY

U.S. volunteer John Cole (L), 23, sits next to a Kurdish fighter at a checkpoint in Makhmour, Iraq April 17, 2016. REUTERS/Ahmed Jadallah

U.S. volunteer John Cole, 23, smokes a cigarette as he holds his assault rifle at a checkpoint in Makhmour, Iraq April 17, 2016. REUTERS/Ahmed Jadallah

U.S. volunteer John Cole, 23, smokes a cigarette at a checkpoint in Makhmour, Iraq April 17, 2016. REUTERS/Ahmed Jadallah

U.S. volunteer John Cole, 23, smokes a cigarette at a checkpoint in Makhmour, Iraq April 17, 2016. REUTERS/Ahmed Jadallah

French Army forces take part in a mock terrorist attack drill at a "fan zone" inside the National Police school in Nimes, France, in preparation of security measures for the UEFA 2016 European Championship, March 17, 2016. REUTERS/Jean-Paul Pelissier

A policeman performs a body search at the entrance of the hospital in the town of Ben Guerdan, Tunisia, near the Libyan border March 9, 2016. REUTERS/Zoubeir Souissi 

A Tunisian police officer stands guard near a police station after Monday's attack by Islamist fighters on an army and police barracks in the town of Ben Guerdan, Tunisia, near the Libyan border March 9, 2016. REUTERS/Zoubeir Souissi 

The flak jacket from a Japan's Ground Self Defense Force soldier is shown while training with U.S. Marines during the bilateral annual Iron Fist military training exercise in Camp Pendleton, California February 26, 2016.REUTERS/Mike Blake 

Security officers stand guard near the site where a military vehicle was damaged by a remote control bomb, near Diyarbakir, Turkey February 18, 2016. A bomb detonated by remote control killed seven Turkish security force members travelling in a military vehicle in southeast Turkey on Thursday, security sources said, a day after a car bomb attack in the capital Ankara killed 28 people. REUTERS/Sertac Kayar 

Security officers stand guard near the site where a military vehicle was damaged by a remote control bomb, near Diyarbakir, Turkey February 18, 2016. A bomb detonated by remote control killed seven Turkish security force members travelling in a military vehicle in southeast Turkey on Thursday, security sources said, a day after a car bomb attack in the capital Ankara killed 28 people. REUTERS/Sertac Kayar 

A Turkish soldier stands guard near site where a military vehicle was damaged by a remote control bomb, near Diyarbakir, Turkey February 18, 2016. A bomb detonated by remote control killed seven Turkish security force members travelling in a military vehicle in southeast Turkey on Thursday, security sources said, a day after a car bomb attack in the capital Ankara killed 28 people. REUTERS/Sertac Kayar 

Rangers react as employees of the Pakistan International Airlines (PIA) chant slogans as they march towards the Jinnah International Airport during a protest in Karachi, Pakistan, February 2, 2016. REUTERS/Akhtar Soomro 

Blood stains and flak jackets used by attackers remain in the hallway of a dormitory where a militant attack took place, at Bacha Khan University in Charsadda, Pakistan January 20, 2016. REUTERS/Caren Firouz TPX IMAGES OF THE DAY

Police secure the area after an explosion near the Ottoman-era Sultanahmet mosque, known as the Blue mosque in Istanbul, Turkey January 12, 2016. Ten people were killed and fifteen others were wounded after a large explosion rocked a central Istanbul square on Tuesday, a statement from the Istanbul governor's office said. REUTERS/Murad Sezer

Police secure the area after an explosion near the Ottoman-era Sultanahmet mosque, known as the Blue mosque in Istanbul, Turkey January 12, 2016. Ten people were killed and fifteen others were wounded after a large explosion rocked a central Istanbul square on Tuesday, a statement from the Istanbul governor's office said. REUTERS/Murad Sezer

French police secure the area after a man was shot dead at a police station in the 18th district in Paris, France, January 7, 2016. Police in Paris on Thursday shot dead a knife-wielding man who tried to enter a police station, police union sources said. The incident took place on the anniversary of last year's deadly Islamist militant attacks on the Charlie Hebdo satirical magazine in the French capital. REUTERS/Benoit Tessier

French police secure the area after a man was shot dead at a police station in the 18th district in Paris, France, January 7, 2016. Police in Paris on Thursday shot dead a knife-wielding man who tried to enter a police station, police union sources said. The incident took place on the anniversary of last year's deadly Islamist militant attacks on the Charlie Hebdo satirical magazine in the French capital. REUTERS/Benoit Tessier TPX IMAGES OF THE DAY 

Kurdish fighters from the People's Protection Units (YPG), who are fighting alongside with the Democratic Forces of Syria, are seen at the eastern entrance of the the Tishrin dam, after they captured it on Saturday from Islamic State militants, south of Kobani, Syria December 27, 2015. A U.S.-backed alliance of Syrian Kurds and Arab rebel groups, supported by U.S. coalition planes, captured a dam on Saturday from Islamic State, cutting one of its main supply routes across the Euphrates, an alliance spokesman said. REUTERS/Rodi Said 

Boulder area SWAT personnel are seen after a candidate forum held by CNBC before the U.S. Republican presidential candidates debate in Boulder, Colorado, October 28, 2015. REUTERS/Evan Semon

A boy walks past soldiers from the Saudi-led coalition patrolling a street in Yemen's southern port city of Aden September 26, 2015. As Gulf-backed forces assemble in Marib province east of Sanaa ahead of a widely expected thrust towards the Houthi-held capital, the fate of Aden and its hinterland may offer a glimpse at whether some form of central government can be resurrected. Picture taken September 26, 2015. To match Insight YEMEN-SECURITY/ADEN REUTERS/Faisal Al Nasser 

A soldier from the Saudi-led coalition walks past a broken-down tank on a street in Yemen's southern port city of Aden September 27, 2015. As Gulf-backed forces assemble in Marib province east of Sanaa ahead of a widely expected thrust towards the Houthi-held capital, the fate of Aden and its hinterland may offer a glimpse at whether some form of central government can be resurrected. To match Insight YEMEN-SECURITY/ADEN REUTERS/Faisal Al Nasser 

Niger soldiers provide security for an anti-Boko Haram summit in Diffa city, Niger September 3, 2015. Picture taken September 3, 2015. To match Exclusive USA-NIGER/BOKO HARAM REUTERS/Warren Strobel 

Kevin Finnegan (L) hands out a new bulletproof vests to a Chicago police officer in Chicago, Illinois, September 14, 2015. The vests were purchased through funds donated to the Chicago Police Memorial Foundation as part of program which hopes to replace 8,000 vests that were deemed to be outdated. REUTERS/Jim Young

Kevin Finnegan searches through boxes of new bulletproof vests to be handed out to Chicago police officers in Chicago, Illinois, September 14, 2015. The vests were purchased through funds donated to the Chicago Police Memorial Foundation as part of program which hopes to replace 8,000 vests that were deemed to be outdated. REUTERS/Jim Young