California National Guard soldiers stand guard outside a bike center during nationwide unrest following the death in Minneapolis police custody of George Floyd, amid the global novel coronavirus outbreak in Santa Monica, California, U.S., June 1, 2020. REUTERS/Lucy Nicholson

Army National Guard Soldiers stand with Louisville Metro Police officers during a protest against the deaths of Breonna Taylor by Louisville police and George Floyd by Minneapolis police, in Louisville, Kentucky, U.S. May 31, 2020. REUTERS/Bryan Woolston

A soldier with the Army National Guard stand on the street during a protest against the deaths of Breonna Taylor by Louisville police and George Floyd by Minneapolis police, in Louisville, Kentucky, U.S. May 31, 2020. REUTERS/Bryan Woolston TPX IMAGES OF THE DAY

Soldiers with the Army National Guard stand with Louisville Metro Police block a street during a protest against the deaths of Breonna Taylor by Louisville police and George Floyd by Minneapolis police, in Louisville, Kentucky, U.S. May 31, 2020. REUTERS/Bryan Woolston TPX IMAGES OF THE DAY

Soldiers with the Army National Guard stand with Louisville Metro Police block a street during a protest against the deaths of Breonna Taylor by Louisville police and George Floyd by Minneapolis police, in Louisville, Kentucky, U.S. May 31, 2020. REUTERS/Bryan Woolston

Visitors in costumes of North Korean leader Kim Jong-un and a North Korean soldier are escorted by a staff member wearing a face shield and a protective mask, during a visit to Tokyo landmark "Tokyo Skytree", which reopened after a 3-month closure due to the coronavirus disease (COVID-19) outbreak, in Tokyo, Japan, June 1, 2020. REUTERS/Kim Kyung-Hoon

A man who identified himself as Red Eagle confronts National Guard soldiers at the Lake St - Midtown Station near the Minneapolis Police third precinct, following Thursday night's demonstrations in response to the death of African-American man George Floyd in Minneapolis, Minnesota, U.S. May 29, 2020. REUTERS/Nicholas Pfosi

Israeli soldiers run near the scene of an incident near Ramallah in the Israeli-occupied West Bank May 29, 2020. REUTERS/Mohamad Torokman

The soldier is seen with a face mask on a first world war memorial in Fenton, following the outbreak of the coronavirus disease (COVID-19), Fenton, Stoke-on-Trent, Britain, May 28, 2020. REUTERS/Carl Recine

The soldier is seen with a face mask on a first world war memorial in Fenton, following the outbreak of the coronavirus disease (COVID-19), Fenton, Stoke-on-Trent, Britain, May 28, 2020. REUTERS/Carl Recine

Israeli soldiers stand guard during a Palestinian protest against Israeli machineries operating near Ramallah in the Israeli-occupied West Bank May 26, 2020. REUTERS/Mohamad Torokman

Visitors watch video footage of Chinese People's Liberation Army (PLA) soldiers marching during the military parade marking the 70th founding anniversary of People's Republic of China on October 1, 2019, at the Military Museum of the Chinese People's Revolution in Beijing, China May 26, 2020. REUTERS/Tingshu Wang

U.S. President Donald Trump reaches out and touches a wreath during ceremonies at the Tomb of the Unknown Soldier in commemoration of the Memorial Day holiday at Arlington National Cemetery outside of Washington in Arlington, Virginia, U.S., May 25, 2020. REUTERS/Erin Scott TPX IMAGES OF THE DAY

U.S. Navy veteran Jimmy Hagerty sits outside the Soldier's Home amid the coronavirus disease (COVID-19) outbreak in Chelsea, Massachusetts, U.S., May 25, 2020. REUTERS/Brian Snyder

U.S. Navy veteran Jimmy Hagerty sits outside the Soldier's Home amid the coronavirus disease (COVID-19) outbreak in Chelsea, Massachusetts, U.S., May 25, 2020. REUTERS/Brian Snyder

A Montenegrin Army soldier walks on a street after Prime Minister Dusko Markovic declared the country the coronavirus disease (COVID-19)-free in Podgorica, Montenegro, May 25, 2020. REUTERS/Stevo Vasiljevic

A U.S. military officer and President Donald Trump salute during a wreath laying ceremony at the Tomb of the Unknown Soldier at Arlington National Cemetery in commemoration of the Memorial Day holiday in Arlington, Virginia, U.S., May 25, 2020. REUTERS/Erin Scott

A U.S. Army soldier stands guard in front of rows of graves as U.S. President Donald Trump participates in wreath laying ceremonies at the Tomb of the Unknown Soldier in commemoration of the Memorial Day holiday at Arlington National Cemetery outside of Washington in Arlington, Virginia, U.S., May 25, 2020. REUTERS/Erin Scott

U.S. first lady Melania Trump watches as President Donald Trump participates in wreath laying ceremonies at the Tomb of the Unknown Soldier in commemoration of the Memorial Day holiday at Arlington National Cemetery outside of Washington in Arlington, Virginia, U.S., May 25, 2020. REUTERS/Erin Scott

U.S. President Donald Trump reaches out and touches a wreath during ceremonies at the Tomb of the Unknown Soldier in commemoration of the Memorial Day holiday at Arlington National Cemetery outside of Washington in Arlington, Virginia, U.S., May 25, 2020. REUTERS/Erin Scott

U.S. President Donald Trump salutes during a wreath laying ceremony at the Tomb of the Unknown Soldier at Arlington National Cemetery in commemoration of the Memorial Day holiday in Arlington, Virginia, U.S., May 25, 2020. REUTERS/Erin Scott

U.S. President Donald Trump salutes during a wreath laying ceremony at the Tomb of the Unknown Soldier at Arlington National Cemetery in commemoration of the Memorial Day holiday in Arlington, Virginia, U.S., May 25, 2020. REUTERS/Erin Scott

U.S. President Donald Trump participates in a wreath laying ceremony at the Tomb of the Unknown Soldier at Arlington National Cemetery near Washington in commemoration of the Memorial Day holiday in Arlington, Virginia, U.S., May 25, 2020. REUTERS/Erin Scott

U.S. first lady Melania Trump arrives to participate in a wreath laying ceremony with President Donald Trump at the Tomb of the Unknown Soldier at Arlington National Cemetery near Washington in commemoration of the Memorial Day holiday in Arlington, Virginia, U.S., May 25, 2020. REUTERS/Erin Scott

U.S. first lady Melania Trump arrives to participate in a wreath laying ceremony with President Donald Trump at the Tomb of the Unknown Soldier at Arlington National Cemetery near Washington in commemoration of the Memorial Day holiday in Arlington, Virginia, U.S., May 25, 2020. REUTERS/Erin Scott

A U.S. military officer salutes and first lady Melania Trump watches as President Donald Trump salutes while participating in a wreath laying ceremony at the Tomb of the Unknown Soldier at Arlington National Cemetery near Washington in commemoration of the Memorial Day holiday in Arlington, Virginia, U.S., May 25, 2020. REUTERS/Erin Scott

U.S. President Donald Trump participates in a wreath laying ceremony at the Tomb of the Unknown Soldier at Arlington National Cemetery near Washington in commemoration of the Memorial Day holiday in Arlington, Virginia, U.S., May 25, 2020. REUTERS/Erin Scott

U.S. first lady Melania Trump watches as President Donald Trump participates in a wreath laying ceremony at the Tomb of the Unknown Soldier at Arlington National Cemetery near Washington in commemoration of the Memorial Day holiday in Arlington, Virginia, U.S., May 25, 2020. REUTERS/Erin Scott

U.S. first lady Melania Trump watches as President Donald Trump salutes while participating in a wreath laying ceremony at the Tomb of the Unknown Soldier at Arlington National Cemetery near Washington in commemoration of the Memorial Day holiday in Arlington, Virginia, U.S., May 25, 2020. REUTERS/Erin Scott

U.S. President Donald Trump participates in a wreath laying ceremony at the Tomb of the Unknown Soldier at Arlington National Cemetery near Washington in commemoration of the Memorial Day holiday in Arlington, Virginia, U.S., May 25, 2020. REUTERS/Erin Scott

A U.S. miltary officer and U.S. President Donald Trump both salute during a wreath laying ceremony at the Tomb of the Unknown Soldier at Arlington National Cemetery in commemoration of the Memorial Day holiday in Arlington, Virginia, U.S., May 25, 2020. REUTERS/Erin Scott TPX IMAGES OF THE DAY

U.S. President Donald Trump arrives with Vice President Mike Pence and Defense Secretary?Mark?Esper to participate in a wreath laying ceremony at the Tomb of the Unknown Soldier at Arlington National Cemetery in commemoration of the Memorial Day holiday in Washington, U.S., May 25, 2020. REUTERS/Erin Scott

Soldiers of the People's Liberation Army (PLA) stand guard outside the Great Hall of the People before the second plenary session of the National People's Congress (NPC) in Beijing, China May 25, 2020. REUTERS/Thomas Peter

An Indian Army soldier cuts trees to clear the roads in the aftermath of Cyclone Amphan, in Kolkata, India, May 24, 2020. REUTERS/Rupak De Chowdhuri

An Indian Army soldier carries tree branches as he clears the road in the aftermath of Cyclone Amphan, in Kolkata, India, May 24, 2020. REUTERS/Rupak De Chowdhuri

Indian Army soldiers cut trees to clear the roads in the aftermath of Cyclone Amphan, in Kolkata, India, May 24, 2020. REUTERS/Rupak De Chowdhuri

Military soldiers attend the Japan Ground Self-Defense Forces' annual live fire exercise at the Higashi-Fuji firing range in Gotemba in Shizuoka prefecture, Japan, amid the spread of the coronavirus disease (COVID-19), May 23, 2020. Charly Triballeau/Pool via REUTERS

Soldiers participate during the Japan Ground Self-Defense Forces' annual live fire exercise at the Higashi-Fuji firing range in Gotemba in Shizuoka prefecture, Japan, amid the spread of the coronavirus disease (COVID-19), May 23, 2020. Charly Triballeau/Pool via REUTERS

Military soldiers attend the Japan Ground Self-Defense Forces' annual live fire exercise at the Higashi-Fuji firing range in Gotemba in Shizuoka prefecture, Japan, amid the spread of the coronavirus disease (COVID-19), May 23, 2020. Charly Triballeau/Pool via REUTERS

A soldier fires a Type-01 anti tank missile from a light armoured vehicle during the Japan Ground Self-Defense Forces' annual live fire exercise at the Higashi-Fuji firing range in Gotemba in Shizuoka prefecture, Japan, amid the spread of the coronavirus disease (COVID-19), May 23, 2020. Charly Triballeau/Pool via REUTERS

Army soldier and police officers guard a cordoned-off street leading to the site of a passenger plane crash in a residential area near an airport in Karachi, Pakistan May 23, 2020. REUTERS/Akhtar Soomro

Army soldier walks along a cordoned-off street leading to the site of a passenger plane crash in a residential area near an airport in Karachi, Pakistan May 23, 2020. REUTERS/Akhtar Soomro

Soldiers stand guard as a truck loaded with food parcels travels along a street as part of a government food parcels program distribution amid the spread of the coronavirus disease (COVID-19) at 'Quinta Normal' area in Santiago, Chile May 22, 2020. REUTERS/Ivan Alvarado

A soldier stands guard as workers unload food parcels as part of a government food parcels program distribution amid the spread of the coronavirus disease (COVID-19) at Santiago, Chile May 22, 2020. REUTERS/Ivan Alvarado

A soldier stands guard as a worker unloads food parcels as part of a government food parcels program distribution amid the spread of the coronavirus disease (COVID-19) at 'Quinta Normal' area in Santiago, Chile May 22, 2020. REUTERS/Ivan Alvarado

Soldiers stand guard as a truck loaded with food parcels travels along a street as part of a government food parcels program distribution amid the spread of the coronavirus disease (COVID-19) at 'Quinta Normal' area in Santiago, Chile May 22, 2020. REUTERS/Ivan Alvarado

Soldiers look at the debris of a plane after crashed in a residential area near an airport in Karachi, Pakistan May 22, 2020. REUTERS/Akhtar Soomro

Migrants swing at playground inside Principovac camp for migrants near Sid, Serbia, May 21, 2020. Picture taken May 21, 2020. REUTERS/Marko Djurica

Migrants cook chicken for dinner inside Principovac camp for migrants near Sid, Serbia, May 21, 2020. Picture taken May 21, 2020. REUTERS/Marko Djurica

Migrants play volleyball at Sid-Point camp for migrants in Sid, Serbia, May 21, 2020. Picture taken May 21, 2020. REUTERS/Marko Djurica

Migrants play volleyball at Sid-Point camp for migrants in Sid, Serbia, May 21, 2020. Picture taken May 21, 2020. REUTERS/Marko Djurica

A migrant takes a rest inside Sid-Point camp for migrants in Sid, Serbia, May 21, 2020. Picture taken May 21, 2020. REUTERS/Marko Djurica

A migrant prays in a makeshift mosque inside Sid-Point camp for migrants in Sid, Serbia, May 21, 2020. Picture taken May 21, 2020. REUTERS/Marko Djurica

Serbian army soldiers check migrant's documents near the Sid-Point camp for migrants in Sid, Serbia, May 21, 2020. Picture taken May 21, 2020. REUTERS/Marko Djurica

Serbian army soldiers patrol near the Sid-Point camp for migrants in Sid, Serbia, May 21, 2020. Picture taken May 21, 2020. REUTERS/Marko Djurica

A migrant prays in a makeshift mosque inside Sid-Point camp for migrants in Sid, Serbia, May 21, 2020. Picture taken May 21, 2020. REUTERS/Marko Djurica

Migrants from Vietnam stand at playground inside Principovac camp for migrants near Sid, Serbia, May 21, 2020. Picture taken May 21, 2020. REUTERS/Marko Djurica

A migrant carries fire wood at Principovac camp for migrants near Sid, Serbia, May 21, 2020. Picture taken May 21, 2020. REUTERS/Marko Djurica

A migrant girl looks through a window inside Sid-Point camp for migrants in Sid, Serbia, May 21, 2020. Picture taken May 21, 2020. REUTERS/Marko Djurica

Serbian army soldiers stand guard along the fence of Sid-Point camp for migrants in Sid, Serbia, May 21, 2020. Picture taken May 21, 2020. REUTERS/Marko Djurica