“We had such conversations very often I can't even count how many times I had to explain to him why the Korean Peninsula was divided in 1945. The same was with Ukraine, which, in his opinion, is actually part of Russia,” Bolton said.
Bolton also said that it was very difficult to give any advice to Trump.
From 2018 to 2019, John Bolton has been serving as a National Security Adviser to President Trump. In June of this year, Bolton published a book, The Room Where It Happened: A White House Memoir, in which he describes his work as the president's national security aide. The book has been causing a stir around the world for several weeks now.