TOPSHOT - A Ukrainian serviceman walks along a trench along the front line, north of the Ukrainian capital of Kyiv on March 31, 2022. - Kyiv said on March 31, 2022, it was sending dozens of buses to evacuate civilians from the besieged city of Mariupol after a Russian ceasefire announcement, as the international Red Cross said it was ready to lead the "desperately important" operation. (Photo by Sergei SUPINSKY / AFP)