Ukrainians walk around the main Christmas Tree in front of the Saint Sophia's Cathedral in Kiev, Ukraine, 23 December 2021. The tree of 31 meters features more than ten thousand Christmas tree decorations. (Photo by Sergey Dolzhenko/EPA/EFE)





A girl holds a candle during a Christmas service at the Ukrainian Greek Catholic Church of the Holy Prophet Elijah in Kramatorsk, not far from a frontline with Russia-backed separatists in eastern Ukraine, Saturday, December 25, 2021. Pope Francis lamented ongoing conflicts in Syria, Yemen and Iraq, newly flaring tensions in Ukraine and Ethiopia, and an “unprecedented crisis” in Lebanon. (Photo by Andriy Andriyenko/AP Photo)





People surround a new military transport aircraft Аn-178-100R designed for the Ukrainian Armed Forces during its roll-out at the Antonov aircraft plant in Kyiv Ukraine, December 28, 2021. (Photo by Gleb Garanich/Reuters)





Crowds of people celebrate the New Year around the Christmas tree with the St. Sofia Cathedral in the background in Kyiv, Ukraine, Friday, December 31, 2021. Despite of COVID-19 quarantine restrictions, a lot of Ukrainians enjoy outdoor New Year events, often ignoring protective measures. (Photo by Efrem Lukatsky/AP Photo)





Activists of various nationalist parties carry torches during a rally in Kyiv, Ukraine, Saturday, January 1, 2022. The rally was organized to mark the birth anniversary of Stepan Bandera, founder of a rebel army that fought against the Soviet regime and who was assassinated in Germany in 1959. (Photo by Efrem Lukatsky/AP Photo)





Ukrainian soldiers walk at the line of separation from pro-Russian rebels, Donetsk region, Ukraine, Sunday, January 2, 2022. President Joe Biden has warned Russia's Vladimir Putin that the U.S. could impose new sanctions against Russia if it takes further military action against Ukraine. (Photo by Andriy Dubchak/AP Photo)





People dressed in traditional costumes attend a celebration Orthodox Christmas in Lviv, Ukraine on January 6, 2022. (Photo by Gleb Garanich/Reuters)





Women dressed in traditional costumes sing Christmas carols as they gather to celebrate Orthodox Christmas at a compound of the National Architecture museum in Kyiv, Ukraine on January 7, 2022. (Photo by Valentyn Ogirenko/Reuters)





A Ukrainian soldier in a trench at the line of separation from pro-Russian rebels, Donetsk region, Ukraine, Saturday, January 8, 2022. President Joe Biden has warned Russia's Vladimir Putin that the U.S. could impose new sanctions against Russia if it takes further military action against Ukraine. (Photo by Andriy Dubchak/AP Photo)





A Ukrainian Military Forces serviceman stands in a trench on the frontline with Russia-backed separatists near to Avdiivka, southeastern Ukraine, on January 8, 2022. (Photo by Anatolii Stepanov/AFP Photo)





Supporters of former Ukrainian President Petro Poroshenko with a poster reading, “Poroshenko, Give fire!” gather waiting for his arrival at Boryspil International Airport outside Kyiv, Ukraine, Monday, January 17, 2022. Poroshenko said he was returning to Ukraine to fight treason charges he viewed as politically motivated because he believed that fighting them is part of his defense of national unity. (Photo by Efrem Lukatsky/AP Photo)





Former Ukrainian President Petro Poroshenko, left, poses for a selfie with a Ukrainian supporter at Warsaw's international airport before boarding a flight to Kyiv, Ukraine, on Monday, January 17, 2022. Poroshenko is returning to Ukraine to fight treason charges which he views as politically motivated. (Photo by Czarek Sokolowski/AP Photo)





A man walks past a destroyed building of a former military installation in the village of Vesyoloye, suburb of Donetsk, capital of a self-proclaimed Donetsk People's Republic (PDR) in eastern Ukraine, on January 18, 2022. (Photo by Alexander Nemenov/AFP Photo)





People immerse themselves into icy waters during during the celebrations of the Orthodox Christian feast of Epiphany in the rebel-controlled city of Alchevsk in the Luhansk region, Ukraine on January 19, 2022. (Photo by Alexander Ermochenko/Reuters)





Former Ukrainian President Petro Poroshenko, right, speaks to a crowd in front of a court building prior to a court session, in Kyiv, Ukraine, Wednesday, January 19, 2022. A Kyiv court is due to rule on whether to remand Poroshenko in custody pending investigation and trial on treason charges he believes are politically motivated. (Photo by Efrem Lukatsky/AP Photo)





Supporters of Ukrainian former President Petro Poroshenko, who is suspected of high treason by financing pro-Russian separatists in eastern Ukraine while in office in 2014-2015, hold a rally outside the presidential administration headquarters in Kyiv, Ukraine January 19, 2022. A placard displaying a photo of Ukrainian President Volodymyr Zelenskiy reads: “Dictator”. (Photo by Valentyn Ogirenko/Reuters)





A Ukrainian soldier points his rifle from the frontline in Zolote, Ukraine on January 20, 2022. (Photo by Wolfgang Schwan/Anadolu Agency via Getty Images)





People attend a ceremony in tribute to fallen defenders of Ukraine, including the soldiers killed during a battle with pro-Russian rebels for the Donetsk airport this day in 2015, at a memorial near the headquarters of the Defence Ministry in Kyiv, Ukraine on January 20, 2022. (Photo by Ukrainian Presidential Press Service/Handout via Reuters)





Service members fire a salute during a ceremony in tribute to fallen defenders of Ukraine, including the soldiers killed during a battle with pro-Russian rebels for the Donetsk airport this day in 2015, at a memorial near the headquarters of the Defence Ministry in Kyiv, Ukraine January 20, 2022. (Photo by Ukrainian Presidential Press Service/Handout via Reuters)