WASHINGTON (AP) — Declaring space crucial to the nation's defense, President Donald Trump said Thursday the Pentagon has established U.S. Space Command to preserve American dominance on "the ultimate high ground."

"This is a landmark day," Trump said in a Rose Garden ceremony, "one that recognizes the centrality of space to America's national security and defense."

He said Space Command, headed by a four-star Air Force general, will "ensure that America's superiority in space is never questioned and never threatened."

But there's still no Space Force.

Space Force, which has become a reliable a...