But Trump was expected to skip the customary trip to the demilitarized zone separating north and south — a pilgrimage made by every U.S. president except one since Ronald Reagan as a demonstration of solidarity with the South. Trump has not ruled out a military strike and backed up his strong words about North Korea by sending a budget request to Capitol Hill on Monday for $4 billion to support "additional efforts to detect, defeat, and defend against any North Korean use of ballistic missiles against the United States, its deployed forces, allies, or partners."