Per Trump's card discussions, he has the cards to stop the Russian incursion of Ukraine and remove Russia from the land they have taken. Will he do it ? No because he is afraid of WW3. No one trusts Russia because they are evil.
Putin invaded Ukraine anticipating a moderate response from the west. He guessed WW3 would not begin. As the west is not evil.
Supposedly Putin is having a hard time finding troops. Eventually he will run out.
Maybe this is the time to confront evil without WW3. Let them wilter until they retreat.