The national security advisor to President Donald Trump said on Wednesday that Putin didn't invade Ukraine because he saw Trump doing a lot of his work for him.

The North Atlantic Treaty Organization, the military and diplomatic alliance established in the wake of World War II, was criticized by Trump.

I think one of the reasons that Putin did not move during Trump's term in office was that he saw the president's hostility of NATO. It was reported in American media.

In a second term, Trump would make good on his desire to get out of NATO, and then it would ease Putin's path just that much more.

During his time in office, Trump undermined NATO. He discussed withdrawing the United States from the alliance in private.

If Trump had won a second term, he believes he would have withdrawn from NATO.

I thought he put his foot over it, but I think he withdrew from NATO in a second Trump term. I think Putin was waiting for that.

The former president would not have stopped Putin if the Russian leader had invaded Ukraine, according to the Vice interview. His comments come as Trump has repeatedly said that Putin would never have invaded Ukraine had he been president and has criticized President Joe Biden over the US response to Russia.

After the two butted heads, Trump ousted him as his national security advisor. He criticized Trump in his 2020 memoir and detailed several claims about the former president, including that he wanted to give personal favors to dictators he liked.