While the establishment of a new military service would require legislation to be passed by Congress, Pence's strong endorsement could signal new momentum for the creation of the first new branch of the armed forces since the Air Force was established in the 1940s.
What would the U.S. Space Force do?
Pence tweeted ahead of his remarks that "space is 'a war-fighting domain, just like the land, air, and sea'". Congressional support will be needed to complete this mission, according to CNN.
Pence says it's needed to ensure America's dominance in space amid heightened competition and threats from China and Russian Federation. Congress would have to approve any plan to make the Space Force a new branch.
The Trump administration wants to spend $8 billion over the next five years to establish the U.S. Space Force as a sixth branch of the military, Vice President Mike Pence said Thursday.
The proposal taps into the American public's long fascination with space - but with a military focus.More news: Turkey's Erdogan stands by opposition to high interest rates
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"It is becoming a contested war fighting domain and we have to adapt to that reality", Mattis said as he introduced Pence. In recent weeks, however, Mattis has spoken more positively about the idea.
The Pentagon report recommended that for now the unified command be in the hands of the Air Force, which currently oversees some of the most critical space-based capabilities.
Create a new Space Development Agency to develop new space capabilities.
While Defense Secretary Jim Mattis rejected the idea of creating a Space Force within the Air Force in 2017, it seems he's changed course, but stopped short of promising a new branch.
Finally, the report calls for clear lines of responsibility and accountability to manage the process of establishing and growing the Space Force, including the appointment of an assistant secretary of defense for space, the vice president said. The Air Force, after all, is run by pilots, not astronauts.
Vice President Mike Pence on Thursday delivered a speech at the Pentagon outlining the administration's plan to move forward with the Space Force, which including instructions for the Department of Defense to draft a legislative proposal for Congress.
"Do we need to recognize the value of space as a domain crucial to USA national security and our economy?"
Opinions on the Space Force in Congress have been divided.