"By 1945, the American military had almost 30 times the number of planes and 85 times the number of pilots and support crews compared to just six years earlier", he said.
Pence said it is needed to ensure America's dominance in space amid heightened completion and threats from China and Russian Federation.
For years, the Pentagon has been warning about how space has become a contested domain of war, just like the land, air and sea. Pence has been the administration's point man for space issues and the White House decided he should be the administration official rolling out the DoD report.
"Ultimately, Congress must act to establish this new department, which will organize, train and equip the United States Space Force", Pence said.
Any plan by the White House to create a new military service would need congressional action. "The Space Force will protect our economy through deterrence of malicious activities, ensure our space systems meet national security requirements, and provide vital capabilities to joint and coalition forces".
Defense One, a news outlet focused on the military, recently reported that the combatant command would be led by a four-star general and there would also be an agency focused on buying satellites, citing a draft copy of a report due to Congress soon.
Hawaii senator Brian Schatz branded the Space Force a "silly but risky idea" as he instead urged the expansion of the "Medicaid" health programme.
The creation of the U.S. Space Command.
While there is broad recognition of the necessity of protecting the US military's assets in space - with satellites playing a central role in modern everyday life and military operations - there remains vigorous debate about the virtues of creating a separate military branch.
The defense secretary, Jim Mattis, has endorsed plans to reorganize the military's spacewar fighting forces and create a new command, but has previously opposed launching an expensive separate new service.
"In 1939, at the start of the Second World War, the U.S. Army Air Corps was still a fledgling organization".
"Both nations are also investing heavily in what is known as hypersonic missiles created to fly up to five miles per second at such low altitudes that they could potentially evade detection via our missile defence radars". The new branch would need to compete for money with other big, politically protected Defense Department priorities that Congress already funds. "But history proves that peace only comes through strength", he added.