US President Donald Trump on Monday said he was ordering the creation of a sixth branch of the military to focus on space, a move critics said could harm the Air Force, Reuters reported.

“It is not enough to merely have an American presence in space. We must have American dominance in space,” Trump said before a meeting of his National Space Council.

“We are going to have the Air Force and we’re going to have the ‘Space Force.’ Separate but equal. It is going to be something,” he said later.