The Ukrainian city of Izium still bears the scars of Russian occupation from four years ago. As Moscow’s forces approach, residents are bracing for the worst.

They made a risky bid to reunite after three years of separation, illness and deprivation — the kind of ordeal suffered by many thousands of families torn apart by the war in eastern Ukraine.

The deadly strikes are part of a long-running maritime battle with Ukraine and echo battles over other key shipping routes around the world.