Speaking at a press conference at Chequers alongside Sir Keir Starmer, Trump believed his personal relationship with Putin would make the conflict "easiest to solve".
Trump suggested Putin would "drop out" of the war if oil prices decreased and appealed to European countries to halt purchasing energy from Russia.
He also claimed Putin initiated the war because he "didn't respect the leadership of the United States" at the time, implying it would not have happened under his presidency.