Zelenskyy is gambling that his surprise attack into Russia can convince Putin to negotiate an end to the 2½-year-old war which has produced an estimated one million casualties. But Putin continues to rely on the sheer weight of numbers to grind Ukraine down.

KYIV, Ukraine -- Russia launched new strikes in the Ukrainian city of Kharkiv that hit high-rise apartment buildings, leaving at least 21 wounded in a second consecutive nighttime attack, authorities said.