KHERSON, Ukraine (AP) — President Volodymyr Zelenskyy triumphantly walked the streets of the newly liberated city of Kherson on Monday, hailing Russia's withdrawal as the "beginning of the end of the war," but also acknowledging the heavy price Ukrainian troops are paying in their grinding effort to push back the invaders.

The retaking of Kherson was one of Ukraine's biggest successes in the nearly 9-month-old war, dealing another stinging blow to the Kremlin. It could serve as a springboard for more advances into occupied territory.

President Joe Biden called it a "significant victory" for Uk...