Hanoi

According to a former senior administration official, former President Donald Trump offered orth Korean leader Kim Jong Un a ride home on Air Force One following a summit in Hanoi, Vietnam in 2019.
"President Trump offered Kim a lift home on Air Force One. The president knew that Kim had arrived on a multi-day train ride through China into Hanoi and the president said: 'I can get you home in two hours if you want.' Kim declined," Matthew Pottinger, the top Asia expert on Trump's National Security Council, told the BBC.