In late 2022, an ambulance pulled up to a bombed-out apartment building in this village outside Kyiv. Three people emerged. One wore a gray hoodie, another a baseball cap. Both had masks covering their faces. The third was more easily identifiable: He was unmasked, and had one arm and two prosthetic legs, witnesses told Reuters. The masked men carried cardboard stencils from the ambulance and taped them to what had been an interior wall of an apartment before the Russians obliterated the place. Then they pulled out cans of spray paint and got to work. An absurd image appeared in...