French Army Chief of Staff Thierry Burkhard poses for a photo during a WWII ceremony to mark the 81st anniversary of late General Charles de Gaulle's resistance call from London on June 18, 1940, at Mont Valerien, in Suresnes, near Paris, France June 18, 2021. Michel Euler/Pool via REUTERS

French Army Chief of Staff Thierry Burkhard poses for a photo during a WWII ceremony to mark the 81st anniversary of late General Charles de Gaulle's resistance call from London on June 18, 1940, at Mont Valerien, in Suresnes, near Paris, France June 18, 2021. Michel Euler/Pool via REUTERS

French President Emmanuel Macron meets WWII French veterans Colette Marin-Catherine one of the last survivor of the Kieffer Commando, 2nd left, an unidentified Resistance fighter, 2nd right, while French Army Chief of Staff Thierry Burkhard stands behind during a ceremony to mark the 81st anniversary of late General Charles de Gaulle's resistance call from London on June 18, 1940, at the Mont Valerien, in Suresnes, near Paris, France June 18, 2021. Michel Euler/Pool via REUTERS

A flag attendant stands next to the flame during a WWII ceremony attended by the French president (not pictured) to mark the 81st anniversary of late General Charles de Gaulle's resistance call from London on June 18, 1940, at the Mont Valerien, in Suresnes, near Paris, France June 18, 2021. Michel Euler/Pool via REUTERS

French President Emmanuel Macron attends a WWII ceremony to mark the 81st anniversary of late French Gen. Charles de Gaulle's resistance call from London on June 18, 1940, at the Mont Valerien, in Suresnes, near Paris, France, June 18, 2021. Michel Euler/Pool via REUTERS

French President Emmanuel Macron and French Prime Minister Jean Castex attend a WWII ceremony to mark the 81st anniversary of late French Gen. Charles de Gaulle's resistance call from London on June 18, 1940, at the Mont Valerien, in Suresnes, near Paris, France, June 18, 2021. Michel Euler/Pool via REUTERS

French President Emmanuel Macron inspects the honor guard as he attends a WWII ceremony to mark the 81st anniversary of late French Gen. Charles de Gaulle's resistance call from London on June 18, 1940, at the Mont Valerien, in Suresnes, near Paris, France, June 18, 2021. Michel Euler/Pool via REUTERS

French President Emmanuel Macron pays respect to the French National flag as he attends a WWII ceremony to mark the 81st anniversary of late French Gen. Charles de Gaulle's resistance call from London on June 18, 1940, at the Mont Valerien, in Suresnes, near Paris, France, June 18, 2021. Michel Euler/Pool via REUTERS

French President Emmanuel Macron inspects the honor guard as he attends a WWII ceremony to mark the 81st anniversary of late French Gen. Charles de Gaulle's resistance call from London on June 18, 1940, at the Mont Valerien, in Suresnes, near Paris, France, June 18, 2021. Michel Euler/Pool via REUTERS

Hubert Germain, a WWII Resistance fighter and the last "Compagnon de la Liberation" attends a WWII ceremony to mark the 81st anniversary of late French Gen. Charles de Gaulle's resistance call from London on June 18, 1940, at the Mont Valerien, in Suresnes, near Paris, France, June 18, 2021. Michel Euler/Pool via REUTERS

People hold their arms after receiving the Johnson & Johnson vaccine against the coronavirus disease (COVID-19), as part of a government plan to inoculate Mexican border residents on its shared frontier with the United States, in Tijuana, Mexico June 17, 2021. REUTERS/Jorge Duenes

Yata Pataxo, of the Pataxo tribe shows her arm that reads "Bolsonaro Out" during a protest for land demarcation and against President Jair Bolsonaro's government, in front of the Planalto Palace in Brasilia, Brazil June 17, 2021. REUTERS/Adriano Machado

Smoke and flames are seen after an Israeli air strike in the northern Gaza Strip, June 17, 2021. REUTERS/Mohammed Salem

Smoke and flames are seen after an Israeli air strike in the northern Gaza Strip, June 17, 2021. REUTERS/Mohammed Salem

Smoke and flames are seen after an Israeli air strike in the northern Gaza Strip, June 17, 2021. REUTERS/Mohammed Salem

Smoke and flames are seen after an Israeli air strike in the northern Gaza Strip, June 17, 2021. REUTERS/Mohammed Salem

Tennis - ATP 500 - Queen's Club Championships - Queen's Club, London, Britain - June 17, 2021 General view as a tattoo on the arm of Britain’s Dan Evans is seen during his round of 16 match against France’s Adrian Mannarino Action Images via Reuters/Paul Childs

Tennis - ATP 500 - Queen's Club Championships - Queen's Club, London, Britain - June 17, 2021 General view as a tattoo on the arm of Britain’s Dan Evans is seen during his round of 16 match against France’s Adrian Mannarino Action Images via Reuters/Paul Childs

Tennis - ATP 500 - Queen's Club Championships - Queen's Club, London, Britain - June 17, 2021 General view as a tattoo on the arm of Britain’s Dan Evans is seen during his round of 16 match against France’s Adrian Mannarino Action Images via Reuters/Paul Childs

(L to R) Chief of the General Staff of Russian Armed Forces Valery Gerasimov, Russia's ambassador to the United States, Anatoly Antonov, Deputy Chief of Staff of the Presidential Executive Office Dmitry Kozak and Russia's Special Envoy to Syria Alexander Lavrentiev wait for Vladimir Putin news conference after the U.S.-Russia summit, in Geneva, Switzerland, June 16, 2021. Picture taken June 16, 2021. REUTERS/Denis Balibouse

(L to R) Chief of the General Staff of Russian Armed Forces Valery Gerasimov, Russia's ambassador to the United States, Anatoly Antonov and Deputy Chief of Staff of the Presidential Executive Office Dmitry Kozak wait for Vladimir Putin news conference after the U.S.-Russia summit, in Geneva, Switzerland, June 16, 2021. Picture taken June 16, 2021. REUTERS/Denis Balibouse

(L to R) Chief of the General Staff of Russian Armed Forces Valery Gerasimov, Russia's ambassador to the United States, Anatoly Antonov and Russia's Special Envoy to Syria Alexander Lavrentiev talk before Vladimir Putin news conference after the U.S.-Russia summit, in Geneva, Switzerland, June 16, 2021. Picture taken June 16, 2021. REUTERS/Denis Balibouse

Chief of the General Staff of Russian Armed Forces Valery Gerasimov speaks with Russia's ambassador to the United States before a news conference after the U.S.-Russia summit, in Geneva, Switzerland, June 16, 2021. Picture taken June 16, 2021. REUTERS/Denis Balibouse

Chief of the General Staff of Russian Armed Forces Valery Gerasimov smiles after the U.S.-Russia summit, in Geneva, Switzerland, June 16, 2021. Picture taken June 16, 2021. REUTERS/Denis Balibouse

Chief of the General Staff of Russian Armed Forces Valery Gerasimov speaks with Russia's ambassador to the United States before a news conference after the U.S.-Russia summit, in Geneva, Switzerland, June 16, 2021. Picture taken June 16, 2021. REUTERS/Denis Balibouse

Russia's Foreign Minister Sergei Lavrov, Russian Presidential Aide Yuri Ushakov and Chief of the General Staff of Russian Armed Forces Valery Gerasimov wait for the news conference of Russia's President Vladimir Putin after the U.S.-Russia summit with U.S. President Joe Biden at Villa La Grange in Geneva, Switzerland, June 16, 2021. REUTERS/Denis Balibouse/Pool

Volunteers hand chickens over to local residents during the distribution of humanitarian aid from the International Committee of the Red Cross in the rebel-controlled city of Donetsk, Ukraine June 16, 2021. REUTERS/Alexander Ermochenko

Belgian Prime Minister Alexander De Croo and Canadian Prime Minister Justin Trudeau bump arms during their visit to pharmaceutical company Pfizer in Puurs, Belgium June 15, 2021. Frederic Sierakowski/Pool via REUTERS

A member of the Armed Forces receives a dose of the AstraZeneca coronavirus disease (COVID-19) vaccine obtained under the COVAX scheme, at the CCK Cultural Centre (Centro Cultural Kirchner), in Buenos Aires, Argentina June 15, 2021. REUTERS/Agustin Marcarian

A member of the Armed Forces prepares a dose of the AstraZeneca coronavirus disease (COVID-19) vaccine obtained under the COVAX scheme, at the CCK Cultural Centre (Centro Cultural Kirchner), in Buenos Aires, Argentina June 15, 2021. REUTERS/Agustin Marcarian

A member of the Armed Forces prepares a dose of the AstraZeneca coronavirus disease (COVID-19) vaccine obtained under the COVAX scheme, at the CCK Cultural Centre (Centro Cultural Kirchner), in Buenos Aires, Argentina June 15, 2021. REUTERS/Agustin Marcarian

A member of the Armed Forces receives a dose of the AstraZeneca coronavirus disease (COVID-19) vaccine obtained under the COVAX scheme, at the CCK Cultural Centre (Centro Cultural Kirchner), in Buenos Aires, Argentina June 15, 2021. REUTERS/Agustin Marcarian

Musicians play for members of the Armed Forces after being vaccinated with doses of the AstraZeneca coronavirus disease (COVID-19) vaccine obtained under the COVAX scheme, at the CCK Cultural Centre (Centro Cultural Kirchner), in Buenos Aires, Argentina June 15, 2021. REUTERS/Agustin Marcarian

A member of the Armed Forces prepares a dose of the AstraZeneca coronavirus disease (COVID-19) vaccine obtained under the COVAX scheme, at the CCK Cultural Centre (Centro Cultural Kirchner), in Buenos Aires, Argentina June 15, 2021. REUTERS/Agustin Marcarian

A member of the Armed Forces shows a dose of the AstraZeneca coronavirus disease (COVID-19) vaccine obtained under the COVAX scheme, at the CCK Cultural Centre (Centro Cultural Kirchner), in Buenos Aires, Argentina June 15, 2021. REUTERS/Agustin Marcarian

A member of the Armed Forces receives a dose of the AstraZeneca coronavirus disease (COVID-19) vaccine obtained under the COVAX scheme, at the CCK Cultural Centre (Centro Cultural Kirchner), in Buenos Aires, Argentina June 15, 2021. REUTERS/Agustin Marcarian

A member of the Armed Forces receives a dose of the AstraZeneca coronavirus disease (COVID-19) vaccine obtained under the COVAX scheme, at the CCK Cultural Centre (Centro Cultural Kirchner), in Buenos Aires, Argentina June 15, 2021. REUTERS/Agustin Marcarian

A member of the Armed Forces receives a dose of the AstraZeneca coronavirus disease (COVID-19) vaccine obtained under the COVAX scheme, at the CCK Cultural Centre (Centro Cultural Kirchner), in Buenos Aires, Argentina June 15, 2021. REUTERS/Agustin Marcarian

A member of the Armed Forces receives a dose of the AstraZeneca coronavirus disease (COVID-19) vaccine obtained through the Covax scheme, at the CCK Cultural Centre (Centro Cultural Kirchner), in Buenos Aires, Argentina June 15, 2021. REUTERS/Agustin Marcarian

Visitors attend the annual exhibition of weaponry and military equipment "Arms and Security 2021" in Kyiv, Ukraine June 15, 2021. REUTERS/Gleb Garanich

Ukrainian soldiers attend the annual exhibition of weaponry and military equipment "Arms and Security 2021" in Kyiv, Ukraine June 15, 2021. REUTERS/Gleb Garanich

An area of Ukrainian aerospace company Motor Sich and association "Corporation Ivchenko" are seen at the annual exhibition of weaponry and military equipment "Arms and Security 2021" in Kyiv, Ukraine June 15, 2021. REUTERS/Gleb Garanich

Visitors attend the annual exhibition of weaponry and military equipment "Arms and Security 2021" in Kyiv, Ukraine June 15, 2021. REUTERS/Gleb Garanich

A staff member waits for visitors at the annual exhibition of weaponry and military equipment "Arms and Security 2021" in Kyiv, Ukraine June 15, 2021. REUTERS/Gleb Garanich

An area of Ukrainian aerospace company Motor Sich and association "Corporation Ivchenko" are seen at the annual exhibition of weaponry and military equipment "Arms and Security 2021" in Kyiv, Ukraine June 15, 2021. REUTERS/Gleb Garanich

A visitor attends the annual exhibition of weaponry and military equipment "Arms and Security 2021" in Kyiv, Ukraine June 15, 2021. REUTERS/Gleb Garanich

Staff members speak at the annual exhibition of weaponry and military equipment "Arms and Security 2021" in Kyiv, Ukraine June 15, 2021. REUTERS/Gleb Garanich

Visitors attend the annual exhibition of weaponry and military equipment "Arms and Security 2021" in Kyiv, Ukraine June 15, 2021. REUTERS/Gleb Garanich

Visitors attend the annual exhibition of weaponry and military equipment "Arms and Security 2021" in Kyiv, Ukraine June 15, 2021. REUTERS/Gleb Garanich

A visitor attends the annual exhibition of weaponry and military equipment "Arms and Security 2021" in Kyiv, Ukraine June 15, 2021. REUTERS/Gleb Garanich

A visitor attends the annual exhibition of weaponry and military equipment "Arms and Security 2021" in Kyiv, Ukraine June 15, 2021. REUTERS/Gleb Garanich

A staff member prepares an exhibit at the annual exhibition of weaponry and military equipment "Arms and Security 2021" in Kyiv, Ukraine June 15, 2021. REUTERS/Gleb Garanich

A visitor attends the annual exhibition of weaponry and military equipment "Arms and Security 2021" in Kyiv, Ukraine June 15, 2021. REUTERS/Gleb Garanich

A woman reacts after receiving the confirmation that her son was killed in a suicide bombing attack on a military base, at the Madina Hospital in Mogadishu, Somalia June 15, 2021. REUTERS/Feisal Omar

A woman reacts after receiving the confirmation that her son was killed in a suicide bombing attack on a military base, at the Madina Hospital in Mogadishu, Somalia June 15, 2021. REUTERS/Feisal Omar

A Somali soldier, injured in a suicide bombing attack at a military base, is helped as he leaves the Madina Hospital in Mogadishu, Somalia June 15, 2021. REUTERS/Feisal Omar

A Somali soldier, injured in a suicide bombing attack at a military base, is helped as he leaves the Madina Hospital in Mogadishu, Somalia June 15, 2021. REUTERS/Feisal Omar TPX IMAGES OF THE DAY

A Somali soldier, injured in a suicide bombing attack at a military base, is seen at the Madina Hospital in Mogadishu, Somalia June 15, 2021. REUTERS/Feisal Omar

Somali security officers arrive to the Madina Hospital that treats people injured in a suicide bombing attack at a military base, in Mogadishu, Somalia June 15, 2021. REUTERS/Feisal Omar