By Gram Slattery WASHINGTON (Reuters) -Donald Trump on Thursday blamed Ukrainian President Volodymyr Zelenskiy for helping start that nation's war with Russia, a comment that further suggests Trump is likely to radically shift U.

Ukraine's President Zelenskiy accuses North Korea of deploying officers alongside Russia and plans to send thousands of troops. This alleged involvement marks an escalation in foreign assistance for Moscow.

Ukraine's president accused North Korea on Thursday of deploying officers alongside Russia and preparing to send thousands of troops to help Moscow's war effort, although NATO's chief said there was no evidence of Pyongyang's presence at this stage.

Ukraine called on its allies on Wednesday to impose new sanctions on Pyongyang after it said North Korea had become a de facto participant in the war in Ukraine on Russia's side. President Volodymyr Zelenskiy told parliament in a speech to outline his victory plan that his spy services had confirmed North Korea's supply of both weapons and people to Russia,

Russia’s army is forming a unit of some 3,000 North Koreans, a Ukrainian military intelligence source has told the BBC, in the latest report suggesting that Pyongyang is forming a close military alliance with the Kremlin.

Ukrainian President Volodymyr Zelenskiy said on Wednesday that North Korea was a de facto participant on Russia's side in its war against Ukraine. In a speech to parliament, the Ukrainian leader said his intelligence services had confirmed North Korea's supply to Russia of both weapons and people.

Ukrainian President Volodymyr Zelensky says his country has intelligence that North Korean troops are being prepared to join Russian forces in Ukraine.

The U.S. and its allies are “alarmed” by North Korea’s nuclear and missile threats as well as its increasing military support for Russia’s war in Ukraine, a senior U.S. official said Wednesday, but couldn’t confirm Ukrainian claims that North Korean soldiers were sent to fight for Moscow.