Like thousands of senior citizens in Ukraine, Zinaida Gyrenko is spending her sunset years in a shelter, her retirement upended by Russia's invasion. "Something exploded and everyone fell to the ground," she says, recalling the moment Russia struck her village in Ukraine's northeast. The Kremlin's invasion, launched more than three years ago, has gravely affected Ukraine's seniors, with a quarter of the population older than 60. IMAGES AND SOUNDBITES