KENNEDY SPACE CENTER — With NASA's Vehicle Assembly Building and a SpaceX rocket as his backdrop, Vice President Mike Pence announced Tuesday the nation's plans to return to dominance in space.

It'll do it, first, by creating a U.S. Space Command, the 11th unified combatant command in the country. Pence said President Donald Trump will direct the Department of Defense on Tuesday to develop Space Command. Officials have estimated the plan could cost as much as $800 million over the next five years.

The news came following the scrubbed launch of SpaceX's first national security mission: To carry the next generation of GPS satellites into orbit for the Air Force. The liftoff was rescheduled for 9:07 a.m. Wednesday.