KEY POINTS
- Ukrainian President Volodymyr Zelenskyy visited the southern city of Kherson after Russian troops withdrew last week.
- City is on the brink of a humanitarian catastrophe, as many residents approach winter without electricity or water.
- Mr Zelenskyy has vowed to press on and reclaim the remaining occupied territories of Ukraine.
Ukrainian President Volodymyr Zelenskyy walked the streets of the newly liberated city of Kherson, hailing Russia's withdrawal as the "beginning of the end of the war."
He also acknowledged on Monday the heavy price Ukrainian troops are paying in their grinding effort to push back the invaders.
was one of Ukraine's biggest successes in the nearly nine-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 Ukraine.
"I can do nothing but applaud the courage, determination and capacity of the Ukrainian people, the Ukrainian military," he said on the sidelines of a Group of 20 summit in Indonesia.
Large parts of eastern and southern Ukraine are still under Russian control, and . Heavy fighting continued elsewhere in the country on Monday.
In Kherson, Mr Zelenskyy awarded medals to soldiers and posed with them for selfies while striking a defiant note.
"This is the beginning of the end of the war," he said. "We are step by step coming to all the temporarily occupied territories."
But he also grimly noted that the fighting "took the best heroes of our country."
The end of Russia's occupation of the city has . But with winter approaching, its residents are without heat, water and electricity, and short on food and medicine.
President Zelenskyy acknowledged the battle "took the best heroes of our country." Source: Getty / Ukrainian government photograph
"The Russian armed forces retain significant capability as well as a large number of troops, and Russia has demonstrated their willingness to bear significant losses," he said.
Kremlin spokesman Dmitry Peskov refused to comment on Mr Zelenskyy's visit, saying only that "you know that it is the territory of the Russian Federation." Russia earlier this year.
Residents said Russian troops plundered the city as they departed last week. They also wrecked key infrastructure before retreating across the wide Dnipro River to its east bank.
One Ukrainian official described the situation in Kherson as "a humanitarian catastrophe."
Mr Biden said he expected things to slow down somewhat militarily "because of the winter months and the inability to move as easily around the country."
In the past two months, Ukraine's military claimed to have retaken dozens of towns and villages north of the city of Kherson, which is a key gateway to the Crimean Peninsula to the south - a region illegally annexed by Russia in 2014.
But the grinding war continued - with shelling, civilian casualties and each side reporting gains.