It would require a new headquarters and major organizational changes.
Nonetheless the Pentagon has endorsed the program with design ideas already having been released for the force's official logo.
"We must have American dominance in space", said Pence, declaring that a new Space Force would be able to respond to growing security threats presented by Russian Federation and China's own space capabilities, and "carry the cause of liberty and peace into the next great American frontier".
PHOTO: Logos for the new Space Force were released by the Trump campaign to supporters to vote for their favorite, August 9, 2018.
The proposal taps into the American public's long fascination with space but with a military focus, and it faces daunting hurdles.
He Qisong, a space security expert in Shanghai, said China should try to ease U.S. anxiety by making diplomatic efforts to prevent the militarisation of space and opening its Tiangong-2 space station to the worldwide community.
First, the report calls for the creation of the U.S. Space Command, a new unified combatant command for space.
In a letter to Pence, he said he did 'not wish to add a separate service that would likely present a narrower and even parochial approach to space operations, ' adding it would create extra bureaucracy and cost.
"Like the other military branches, the Space Force will organize, train, and equip forces to protect national security interests in the physical domain of space".
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"President Trump wants a SPACE FORCE - a ground breaking endeavor for the future of America and the final frontier", read the email, signed by Brad Parscale, Trump's 2020 campaign manager.
Democratic Senator Brian Schatz, who is on the Defense Appropriations subcommittee, said the Space Force was a 'dumb idea'. This whole project will also need Congress's approval to get up and running, and that's not necessarily a sure thing, what with a fair few top military leaders remaining pretty strongly opposed to the plan.
The United States is a member of the 1967 Outer Space Treaty, which bars the stationing of weapons of mass destruction in space and only allows for the use of the moon and other celestial bodies for peaceful purposes. The United States, then, is left with two options: compete in this developing battlespace or be left at a significant disadvantage.
Bloomberg Businessweek asked eight well-known designers to design a Space Force logo.
Pence and the report noted that Congressional action would be required to establish a new military branch, but said the Trump administration would work with Congress to establish the force and would seek funding for it in its next defense budget request.
And, for what it's worth, Russian and China do each have a space force of their own, to some degree.
The Space Operations Force will "train, promote, and retain personnel to include engineers, scientists, intelligence experts, operators, strategists, and others", reported ABC. Created in 1982, it is headquartered at Peterson air force base in Colorado and oversees 30,000 people. "But recently, our adversaries have been working to bring new weapons of war into space itself".
James said she thinks they're now "stuck because the president announced this by surprise". Instead, many have argued that the effort is best left under the Air Force's purview, as it is now. Wilson was travelling on business and not at the Pentagon when Pence made his announcement.