The Space Force has Elon Musk's seal of approval.

SpaceX's billionaire founder and CEO said he's onboard with the sixth branch of the U.S. military, which President Donald Trump officially established in December 2019.

"I think it's actually cool that the creation of the Space Force is happening," Musk said Friday (Feb. 28) during a "fireside chat" at the Air Force Association's Air Warfare Symposium in Orlando, Florida. 

"It makes sense that there's a major branch for every domain," he told his interviewer at the event, Lt. Gen. John Thompson, commander of the Space and Missile Systems Center at Los Angeles Air Force Base. 

The official U.S. Space Force seal. (Image credit: United States Space Force)

Though the Space Force's detailed duties remain fuzzy, it's safe to assume that the new branch's priorities will include protecting U.S. space assets from potential interference or aggression and helping the nation maintain its long-held dominance in the final frontier.

That dominance is now under serious threat, U.S. military officials have stressed over the past few years, citing Russia and China as the two chief competitors. In response, the U.S. Air Force has begun emphasizing adaptability, flexibility and speed of innovation in its space systems. The old way of doing business — spending 15 years and a billion dollars or so to get a single (highly capable) satellite off the drawing board and into orbit — just won't cut it in today's fast-moving space-tech environment, Air Force officials have said.