An illuminated window of a residential building with the lighting turned off for safety reasons, in the city of Kyiv, Friday, Feb. 25, 2022. Russian troops bore down on Ukraine???s capital Friday, with explosions and gunfire sounding in the city as the invasion of a democratic country fueled fears of wider war in Europe and triggered new international efforts ??" including direct sanctions on President Vladimir Putin ??" to make Moscow stop. (AP Photo/Efrem Lukatsky)