A woman reacts as she waits for a train trying to leave Kyiv, Ukraine, Thursday, Feb. 24, 2022. Russian troops have launched their anticipated attack on Ukraine. Big explosions were heard before dawn in Kyiv, Kharkiv and Odesa as world leaders decried the start of an Russian invasion that could cause massive casualties and topple Ukraine’s democratically elected government. (AP Photo/Emilio Morenatti)