A soldier stands guard in front of bars and sand barriers at the Independence Square, as Russia's invasion of Ukraine continues, in Kyiv, Ukraine March 2, 2022. REUTERS/Umit Bektas

A car loaded with antitank obstacles is parked near a monument in Independence Square in central Kyiv, Ukraine March 1, 2022. REUTERS/Gleb Garanich

A car loaded with antitank obstacles is parked near an installation in Independence Square in central Kyiv, Ukraine March 1, 2022. An installation reads: "I love Ukraine". REUTERS/Gleb Garanich

A car loaded with antitank obstacles is parked near an installation in Independence Square in central Kyiv, Ukraine March 1, 2022. An installation reads: "I love Ukraine". REUTERS/Gleb Garanich

A general view shows Independence Square in central Kyiv, Ukraine February 25, 2022. REUTERS/Valentyn Ogirenko

A general view shows Independence Square in central Kyiv, Ukraine February 25, 2022. An installation reads: "I love Ukraine". REUTERS/Valentyn Ogirenko

A general view shows Independence Square in central Kyiv, Ukraine February 25, 2022. REUTERS/Valentyn Ogirenko

A general view shows Independence Square in central Kyiv, Ukraine February 25, 2022. An installation reads: "I love Ukraine". REUTERS/Valentyn Ogirenko

A general view shows Independence Square in central Kyiv, Ukraine February 25, 2022. REUTERS/Valentyn Ogirenko

A Ukrainian national flag is seen at Independence Square as part of "Unity Day," a holiday President Volodymyr Zelenskiy created this week after Russia massed troops near Ukraine's borders, in downtown Kyiv, Ukraine February 16, 2022. REUTERS/Carlos Barria

Local residents walk along Independence Square in downtown Kyiv, Ukraine February 16, 2022. REUTERS/Carlos Barria

People take part in the Unity March, which is a procession to demonstrate Ukrainians' patriotic spirit amid growing tensions with Russia, in Independence Square in Kyiv, Ukraine February 12, 2022. REUTERS/Valentyn Ogirenko

NATO flag flies in front of the Independence Monument during a rally of supporters of the "Democratic Axe" political party to thank all of Ukraine's partners for political support and military aid, at Independence Square in Kyiv, Ukraine January 30, 2022. REUTERS/Valentyn Ogirenko

The U.S. national flag flies in front of the Independence Monument during a rally of supporters of the "Democratic Axe" political party to thank all of Ukraine's partners for political support and military aid, at Independence Square in Kyiv, Ukraine January 30, 2022. REUTERS/Valentyn Ogirenko

The U.S. national flag flies in front of the Independence Monument during a rally of supporters of the "Democratic Ax" political party to thank all of Ukraine's partners for political support and military aid, at Independence Square in Kyiv, Ukraine January 30, 2022. REUTERS/Valentyn Ogirenko

A supporter of the political party "Democratic Axe" takes part in a rally to thank all of Ukraine's partners for political support and military aid, at Independence Square in Kyiv, Ukraine January 30, 2022. REUTERS/Valentyn Ogirenko

A supporter of the political party "Democratic Axe" takes part in a rally to thank all of Ukraine's partners for political support and military aid, at Independence Square in Kyiv, Ukraine January 30, 2022. REUTERS/Valentyn Ogirenko

A banner and flags installed by supporters of the political party "Democratic Axe" are seen during a rally to thank all of Ukraine's partners for political support and military aid, at Independence Square in Kyiv, Ukraine January 30, 2022. REUTERS/Valentyn Ogirenko

A supporter of the political party "Democratic Axe" holds a U.S. flag during a rally to thank all of Ukraine's partners for political support and military aid, at Independence Square in Kyiv, Ukraine January 30, 2022. REUTERS/Valentyn Ogirenko

Supporters of the political party "Democratic Axe" take part in a rally to thank all of Ukraine's partners for political support and military aid, at Independence Square in Kyiv, Ukraine January 30, 2022. REUTERS/Valentyn Ogirenko

Supporters of the political party "Democratic Axe" take part in a rally to thank all of Ukraine's partners for political support and military aid, at Independence Square in Kyiv, Ukraine January 30, 2022. REUTERS/Valentyn Ogirenko

Supporters of the political party "Democratic Axe" take part in a rally to thank all of Ukraine's partners for political support and military aid, at Independence Square in Kyiv, Ukraine January 30, 2022. REUTERS/Valentyn Ogirenko

Supporters of the political party "Democratic Axe" take part in a rally to thank all of Ukraine's partners for political support and military aid, at Independence Square in Kyiv, Ukraine January 30, 2022. REUTERS/Valentyn Ogirenko

Supporters of the political party "Democratic Axe" take part in a rally to thank all of Ukraine's partners for political support and military aid, at Independence Square in Kyiv, Ukraine January 30, 2022. REUTERS/Valentyn Ogirenko

Supporters of the political party "Democratic Axe" take part in a rally to thank all of Ukraine's partners for political support and military aid, at Independence Square in Kyiv, Ukraine January 30, 2022. REUTERS/Valentyn Ogirenko

Supporters of the political party "Democratic Axe" take part in a rally to thank all of Ukraine's partners for political support and military aid, at Independence Square in Kyiv, Ukraine January 30, 2022. REUTERS/Valentyn Ogirenko

Supporters of the political party "Democratic Axe" take part in a rally to thank all of Ukraine's partners for political support and military aid, at Independence Square in Kyiv, Ukraine January 30, 2022. REUTERS/Valentyn Ogirenko

Supporters of the political party "Democratic Axe" take part in a rally to thank all of Ukraine's partners for political support and military aid, at Independence Square in Kyiv, Ukraine January 30, 2022. REUTERS/Valentyn Ogirenko

A pedestrian walks in a square near a banner displaying the slogan "We are Russian Donbass!" in the rebel-held city of Donetsk, Ukraine January 24, 2022. REUTERS/Alexander Ermochenko

An aerial view shows an illuminated Christmas tree in Sofiyska Square in central Kyiv, Ukraine December 22, 2021. Picture taken with a drone. REUTERS/Valentyn Ogirenko

A boy plays with pigeons at a central square in Kramatorsk, Ukraine November 25, 2021. Picture taken November 25, 2021. REUTERS/Valentyn Ogirenko

An Israeli flag attached to a drone (not seen) flies over the Independence Square during an action organized by pro-Israel activists in Kyiv, Ukraine May 14, 2021. REUTERS/Valentyn Ogirenko

An Israeli flag attached to a drone flies over the Mykhailivska Square during an action organized by pro-Israel activists in Kyiv, Ukraine May 14, 2021. REUTERS/Valentyn Ogirenko

People cross a snow-covered square after a snowfall in central Kyiv, Ukraine February 9, 2021. REUTERS/Gleb Garanich

A woman crosses a snow-covered square after a snowfall in central Kyiv, Ukraine February 9, 2021. REUTERS/Gleb Garanich

People cross a snow-covered square after a snowfall in central Kyiv, Ukraine February 9, 2021. REUTERS/Gleb Garanich

People visit a Christmas fair at a square in front of the St Sophia Cathedral in central Kyiv, Ukraine December 20, 2020. REUTERS/Valentyn Ogirenko

General view shows a Christmas tree at the Sofiyska square in central Kyiv, Ukraine December 20, 2020. REUTERS/Valentyn Ogirenko

Ukrainian law enforcement officers attempt to restrain demonstrators during a rally of entrepreneurs and representatives of small businesses amid the coronavirus disease (COVID-19) outbreak in Independence Square in Kyiv, Ukraine December 15, 2020. Entrepreneurs gathered to demand governmental support and to protest against restrictive measures introduced to curb the spread of the coronavirus. REUTERS/Gleb Garanich

Ukrainian law enforcement officers use a stretcher while carrying their colleague, who was injured during a rally of entrepreneurs and representatives of small businesses amid the coronavirus disease (COVID-19) outbreak in Independence Square in Kyiv, Ukraine December 15, 2020. Entrepreneurs gathered to demand governmental support and to protest against restrictive measures introduced to curb the spread of the coronavirus. REUTERS/Gleb Garanich

Ukrainian law enforcement officers react during a rally of entrepreneurs and representatives of small businesses amid the coronavirus disease (COVID-19) outbreak in Independence Square in Kyiv, Ukraine December 15, 2020. Entrepreneurs gathered to demand governmental support and to protest against restrictive measures introduced to curb the spread of the coronavirus. REUTERS/Gleb Garanich

Demonstrators attack Ukrainian law enforcement officers during a rally of entrepreneurs and representatives of small businesses amid the coronavirus disease (COVID-19) outbreak in Independence Square in Kyiv, Ukraine December 15, 2020. Entrepreneurs gathered to demand governmental support and to protest against restrictive measures introduced to curb the spread of the coronavirus. REUTERS/Gleb Garanich

Demonstrators gather near tents during a rally of entrepreneurs and representatives of small businesses amid the coronavirus disease (COVID-19) outbreak in Independence Square in Kyiv, Ukraine December 15, 2020. Entrepreneurs gathered to demand governmental support and to protest against restrictive measures introduced to curb the spread of the coronavirus. REUTERS/Gleb Garanich

Demonstrators gather near tents during a rally of entrepreneurs and representatives of small businesses amid the coronavirus disease (COVID-19) outbreak in Independence Square in Kyiv, Ukraine December 15, 2020. Entrepreneurs gathered to demand governmental support and to protest against restrictive measures introduced to curb the spread of the coronavirus. REUTERS/Gleb Garanich

Ukrainian law enforcement officers stand guard during a rally of entrepreneurs and representatives of small businesses amid the coronavirus disease (COVID-19) outbreak in Independence Square in Kyiv, Ukraine December 15, 2020. Entrepreneurs gathered to demand governmental support and to protest against restrictive measures introduced to curb the spread of the coronavirus. REUTERS/Gleb Garanich

Ukrainian law enforcement officers stand guard during a rally of entrepreneurs and representatives of small businesses amid the coronavirus disease (COVID-19) outbreak in Independence Square in Kyiv, Ukraine December 15, 2020. Entrepreneurs gathered to demand governmental support and to protest against restrictive measures introduced to curb the spread of the coronavirus. REUTERS/Gleb Garanich

Ukrainian law enforcement officers leave a square during a rally of entrepreneurs and representatives of small businesses amid the coronavirus disease (COVID-19) outbreak in Kyiv, Ukraine December 15, 2020. Entrepreneurs gathered to demand governmental support and to protest against restrictive measures introduced to curb the spread of the coronavirus. REUTERS/Gleb Garanich TPX IMAGES OF THE DAY

A Ukrainian law enforcement officers uses a pepper spray to restrain a demonstrator during a rally of entrepreneurs and representatives of small businesses amid the coronavirus disease (COVID-19) outbreak in Independence Square in Kyiv, Ukraine December 15, 2020. Entrepreneurs gathered to demand governmental support and to protest against restrictive measures introduced to curb the spread of the coronavirus. REUTERS/Gleb Garanich

Ukrainian law enforcement officers block demonstrators during a rally of entrepreneurs and representatives of small businesses amid the coronavirus disease (COVID-19) outbreak in Independence Square in Kyiv, Ukraine December 15, 2020. Entrepreneurs gathered to demand governmental support and to protest against restrictive measures introduced to curb the spread of the coronavirus. REUTERS/Gleb Garanich

Ukrainian law enforcement officers use tear gas while removing demonstrators' tents during a rally of entrepreneurs and representatives of small businesses amid the coronavirus disease (COVID-19) outbreak in Independence Square in Kyiv, Ukraine December 15, 2020. Entrepreneurs gathered to demand governmental support and to protest against restrictive measures introduced to curb the spread of the coronavirus. REUTERS/Gleb Garanich

Ukrainian law enforcement officers use tear gas while removing demonstrators' tents during a rally of entrepreneurs and representatives of small businesses amid the coronavirus disease (COVID-19) outbreak in Independence Square in Kyiv, Ukraine December 15, 2020. Entrepreneurs gathered to demand governmental support and to protest against restrictive measures introduced to curb the spread of the coronavirus. REUTERS/Gleb Garanich

Ukrainian law enforcement officers stand guard as demonstrators kindle a fire during a rally of entrepreneurs and representatives of small businesses amid the coronavirus disease (COVID-19) outbreak in Independence Square in Kyiv, Ukraine December 15, 2020. Entrepreneurs gathered to demand governmental support and to protest against restrictive measures introduced to curb the spread of the coronavirus. REUTERS/Gleb Garanich

Ukrainian law enforcement officers block demonstrators during a rally of entrepreneurs and representatives of small businesses amid the coronavirus disease (COVID-19) outbreak in Independence Square in Kyiv, Ukraine December 15, 2020. Entrepreneurs gathered to demand governmental support and to protest against restrictive measures introduced to curb the spread of the coronavirus. REUTERS/Gleb Garanich

Ukrainian law enforcement officers block demonstrators during a rally of entrepreneurs and representatives of small businesses amid the coronavirus disease (COVID-19) outbreak in Independence Square in Kyiv, Ukraine December 15, 2020. Entrepreneurs gathered to demand governmental support and to protest against restrictive measures introduced to curb the spread of the coronavirus. REUTERS/Gleb Garanich

Ukrainian law enforcement officers block demonstrators during a rally of entrepreneurs and representatives of small businesses amid the coronavirus disease (COVID-19) outbreak in Independence Square in Kyiv, Ukraine December 15, 2020. Entrepreneurs gathered to demand governmental support and to protest against restrictive measures introduced to curb the spread of the coronavirus. REUTERS/Gleb Garanich

Ukrainian law enforcement officers clash with demonstrators during a rally of entrepreneurs and representatives of small businesses amid the coronavirus disease (COVID-19) outbreak in Independence Square in Kyiv, Ukraine December 15, 2020. Entrepreneurs gathered to demand governmental support and to protest against restrictive measures introduced to curb the spread of the coronavirus. REUTERS/Gleb Garanich

Ukrainian law enforcement officers use tear gas as they block demonstrators during a rally of entrepreneurs and representatives of small businesses amid the coronavirus disease (COVID-19) outbreak in Independence Square in Kyiv, Ukraine December 15, 2020. Entrepreneurs gathered to demand governmental support and to protest against restrictive measures introduced to curb the spread of the coronavirus. REUTERS/Gleb Garanich

Ukrainian law enforcement officers use tear gas as they block demonstrators during a rally of entrepreneurs and representatives of small businesses amid the coronavirus disease (COVID-19) outbreak in Independence Square in Kyiv, Ukraine December 15, 2020. Entrepreneurs gathered to demand governmental support and to protest against restrictive measures introduced to curb the spread of the coronavirus. REUTERS/Gleb Garanich

Demonstrators attend a rally in solidarity with Belarusian opposition supporters, who hold protests to reject the presidential election results and to demand the release of political prisoners in Belarus, in Independence Square in Kyiv, Ukraine October 24, 2020. REUTERS/Valentyn Ogirenko

A member of Azerbaijan diaspora shouts slogans and waves Azerbaijan's national flag during a rally in support of his country over the conflict in the Nagorno-Karabakh region, at the Independence Square in Kyiv, Ukraine October 11, 2020. REUTERS/Valentyn Ogirenko