More than 100,000 Russian soldiers have been killed or injured in the Ukraine war, a top US military general has said.
"The same is possible on the Ukrainian side," added Mark Milley, chairman of the Joint Chiefs of Staff.
He said as many as 40,000 Ukrainian civilians have also been killed or injured since Russia launched its invasion nine months ago.
"There has been a lot of suffering, human suffering," he said.
Milley also said Russia's withdrawal from Kherson could give Kyiv and Moscow a chance to negotiate peace.
Joe Biden suggested it would allow both sides to "recalibrate their positions" over the winter.
Russian troops have been ordered to withdraw from the western bank of the Dnipro river near the strategic southern Ukrainian city in what could be a turning point in the war.
Ukraine reacted cautiously, noting some Russian troops remained in Kherson and reinforcements were sent to the region.
THE MAIN POINT
- 'More than' 100,000 Russian soldiers killed or injured, AS says
- Kherson's resignation is an opportunity for Russia and Ukraine to negotiate peace, says US Joint Chiefs of Staff
- Russia's Kherson withdrawal shows its military has 'some real problems', says Joe Biden
- Putin will miss G20 summit in Bali next week
Ukraine responds cautiously to Russia's withdrawal from Kherson, 'enemies don't give us gifts'
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Jersey Police did not immediately respond to a request for comment.
Ukrainian troops strengthen 'step by step' - Zelensky
Ukrainian troops are strengthening their positions "step by step" in the south, Volodymyr Zelensky said in a speech Wednesday night mentioning Kherson only once, warning that "the enemy will not give us gifts."
US President Joe Biden said Moscow's order to withdraw from Kherson showed there were "some real problems with the Russian military."
NATO Secretary General Jens Stoltenberg, speaking to Sky News during a visit to London, welcomed the news about Kherson but also warned that "Russia could still inflict a lot of damage."
Adding to the sense of Russian chaos in Kherson, Moscow's number two official there, Kirill Stremousov, was killed Wednesday in what Moscow said was a car crash.
Russia's leading war hawk on Wednesday backed the decision to leave the city of Kherson, putting a brave face on one of Moscow's most humiliating retreats.
"After weighing all the pros and cons, General Surovikin made the difficult but right choice between unreasonable sacrifices for harsh statements and saving the lives of priceless soldiers," said Ramzan Kadyrov, a Chechen leader who has often urged a more aggressive approach. to war.
Russian commander says it is no longer possible to supply Kherson
Moscow ordered troops to withdraw from near the strategic southern Ukrainian city of Kherson in a major setback as a top US general estimated Russia had suffered more than 100,000 dead or wounded since attacking its neighbor in February.
Defense Minister Sergei Shoigu on Wednesday announced Russian troops would withdraw from the west bank of the Dnipro River near Kherson in what could be a turning point in the war.
Ukraine reacted cautiously, noting some Russian troops remained in Kherson and reinforcements were sent to the region.
"They are moving out but not as much as would be if it were a full withdrawal or a regrouping," Oleksiy Arestovych, presidential adviser to Volodymyr Zelensky, said in a video posted online late Wednesday.