Bosse, 9, holds a sign at an anti-war demonstration, amid Russia's invasion of Ukraine, in Hamburg, Germany, March 20, 2022. REUTERS/Fabian Bimmer 

Ukrainian people hold flags and placards during a demonstration against Russia's invasion of Ukraine, in Athens, Greece, March 19, 2022. REUTERS/Louiza Vradi 

A "Stop War" banner is mounted on St. Stephens cathedral in support of Ukraine, amid Russia's invasion of Ukraine, in Vienna, Austria March 22, 2022. REUTERS/Leonhard Foeger 

A woman walks past artwork depicting Ukrainian president Volodymyr Zelenskiy by artist Bambi as Russia's invasion of Ukraine continues, London, Britain, March 24, 2022. REUTERS/Peter Cziborra 

A protester holds a giant Ukrainian flag and banner during an anti-war protest, following Russia's invasion of Ukraine, in Belgrade, Serbia, March 20, 2022. REUTERS/Zorana Jevtic 

A child wrapped in an Israeli flag attends a demonstration in support of Ukraine following Russia's invasion, before Ukrainian President Volodymyr Zelenskiy's speech was broadcasted to the Knesset, Israel's parliament, and projected at Habima square in Tel Aviv, Israel, March 20, 2022. REUTERS/Corinna Kern 

Protesters, including Russian citizens, shout slogans in support of Ukraine during an anti-war rally in Tbilisi, Georgia, March 24, 2022. REUTERS/Irakli Gedenidze 

An activist from Amnesty International plays the drum during a protest outside the Russian Embassy as part of a Global Day of Action for Ukraine, following Russia's invasion in Mexico City, Mexico, March 24, 2022. REUTERS/Edgard Garrido 

An activist from Amnesty International holds a sign during a protest outside the Russian Embassy as part of a Global Day of Action for Ukraine, following Russia's invasion in Mexico City, Mexico, March 24, 2022. REUTERS/Edgard Garrido 

Protesters, including Russian citizens, shout slogans in support of Ukraine during an anti-war rally in Tbilisi, Georgia, March 24, 2022. REUTERS/Irakli Gedenidze 

People take part in a demonstration in support of Ukraine, amid Russia's invasion of the country, in Sofia, Bulgaria, March 24, 2022. REUTERS/Stoyan Nenov 

People take part in a demonstration in support of Ukraine, amid Russia's invasion of the country, in Sofia, Bulgaria, March 24, 2022. REUTERS/Stoyan Nenov 

Demonstrators hold signs outside the European Council during a protest to call on EU leaders to ban imports of Russian gas, amid Russia's invasion of Ukraine, in Brussels, Belgium March 22, 2022. REUTERS/Johanna Geron 

Demonstrators hold signs in front of a 'peace sign' lit outside the European Council during a protest to call on EU leaders to ban imports of Russian gas, amid Russia's invasion of Ukraine, in Brussels, Belgium March 22, 2022. REUTERS/Johanna Geron 

People pass a "Stop War" banner mounted on St. Stephens cathedral in support of Ukraine, amid Russia's invasion of Ukraine, in Vienna, Austria March 22, 2022. REUTERS/Leonhard Foeger 

A protestor holds up a sign at a demonstration in support of Ukraine following Russia's invasion, before Ukrainian President Volodymyr Zelenskiy's speech was broadcasted to the Knesset, Israel's parliament, and projected at Habima square in Tel Aviv, Israel, March 20, 2022. REUTERS/Corinna Kern 

A woman reacts as she holds a protest sign at a demonstration in support of Ukraine following Russia's invasion, before Ukrainian President Volodymyr Zelenskiy's speech was broadcasted to the Knesset, Israel's parliament, and projected at Habima square in Tel Aviv, Israel, March 20, 2022. REUTERS/Corinna Kern 

Demonstrators watch Zelenskiy's speech during a protest in support of Ukraine following Russia's invasion, as it is broadcasted to the Knesset, Israel's parliament and projected at Habima Square in Tel Aviv, Israel, March 20, 2022. REUTERS/Corinna Kern 

Demonstrators gather in support of Ukraine following Russia's invasion, and watch Zelenskiy's speech as it is broadcasted to the Knesset, Israel's parliament, and projected at Habima Square in Tel Aviv, Israel, March 20, 2022. REUTERS/Corinna Kern 

People hold a giant Ukrainian flag during an anti-war protest, following Russia's invasion of Ukraine, in Belgrade, Serbia, March 20, 2022. REUTERS/Zorana Jevtic 

People take part in an anti-war protest with a banner that reads "No to Putin's war" following Russia's invasion of Ukraine, in Madrid, Spain, March 20, 2022. REUTERS/Susana Vera 

Protesters hold signs at an anti-war demonstration, amid Russia's invasion of Ukraine, in Hamburg, Germany, March 20, 2022. REUTERS/Fabian Bimmer 

A Ukrainian woman holds a placard with the Ukrainian flag and another one depicting Russian President Vladimir Putin as Adolf Hitler, during a demonstration against Russia's invasion of Ukraine, in Athens, Greece, March 19, 2022. REUTERS/Louiza Vradi 

Ukraine's President Volodymyr Zelenskiy speaks during a demonstration for peace, via videolink, amid Russia's invasion of Ukraine, in front of the seat of the Swiss federal parliament Bundeshaus in Bern, Switzerland March 19, 2022. REUTERS/Arnd Wiegmann 

People take part in a demonstration for peace, amid Russia's invasion of Ukraine, in front of the seat of the Swiss federal parliament Bundeshaus in Bern, Switzerland March 19, 2022. REUTERS/Arnd Wiegmann 

A protester holds a sign during a demonstration for peace, amid Russia's invasion of Ukraine, in Bern, Switzerland March 19, 2022. REUTERS/Arnd Wiegmann 

People hold signs during a demonstration for peace, amid Russia's invasion of Ukraine, in Bern, Switzerland March 19, 2022. The sign reads "Putin is a war criminal". REUTERS/Arnd Wiegmann 

A protester reacts as she takes part in an anti-war protest following Russia's invasion of Ukraine, outside the Russian embassy in Bangkok, Thailand March 19, 2022. REUTERS/Athit Perawongmetha TPX IMAGES OF THE DAY 

Protesters take part in an anti-war protest following Russia's invasion of Ukraine, outside the Russian embassy in Bangkok, Thailand March 19, 2022. REUTERS/Athit Perawongmetha 

Protesters take part in an anti-war protest following Russia's invasion of Ukraine, outside the Russian embassy in Bangkok, Thailand March 19, 2022. REUTERS/Athit Perawongmetha 

A person holds a peace sign in the colours of the Ukrainian flag during the anti-war concert "Sound for Peace", amid Russia's invasion of Ukraine, at the Brandenburg Gate in Berlin, Germany, March 20, 2022. REUTERS/Christian Mang 

People walk past artwork in support of Ukraine, as Russia's invasion of Ukraine continues, London, Britain, March 24, 2022. REUTERS/Peter Cziborra 

Pedestrians walk past a Ukrainian flag hanging in support of the country on an apartment building at Friedrichshain-Kreuzberg district, amid Russia's invasion of Ukraine, in Berlin, Germany March 24, 2022. REUTERS/Fabrizio Bensch 

A woman wears feathers with the colors of the Ukrainian flag during a demonstration in support of Ukraine, next to the venue of a leaders' summit to discuss Russia's invasion of Ukraine, in Brussels, Belgium March 24, 2022. REUTERS/Christian Hartmann