The president framed space as a national security issue, saying he does not want "China and Russian Federation and other countries leading us".
Russia's Foreign Ministry warned on Wednesday that USA military plans for dominating outer space could reignite an arms race between the former Cold War rivals.
This isn't the first time that the USA has considered adding a Space Force to the military.
Presently, the US Armed Forces include five service branches: Air Force, Army, Coast Guard, Marine Corps, and Navy.
He said the new branch's creation will be overseen by Gen. Joseph Dunford, the chairman of the Joint Chiefs of Staff.
Responding to President Trump's executive order for the establishment of a "Space Force" within the United States military, China warned that such a decision could result in an space arms race. "The essence of the American character is to explore new horizons and to tame new frontiers".
In addition, there are two other space initiatives being enforced by the National Space Council.
The somewhat overshadowed directive, "seeks to address the challenges of a congested space environment", said Executive secretary of the National Space Council Scott Pace.
Others question whether a Space Force would increase Pentagon spending and accelerate the militarization of space. New branches of the Armed Forces must be put in place by an Act of Congress.
Trump will need a lot more than a verbal command to get his Space Force rolling.
President Donald Trump is signing a new space policy directive at the White House that aims to reduce satellite clutter in space.
Trump also promised that will soon return to the United States on the moon and will reach Mars, - stated in the message. "Separate but equal, it is going to be something so important". "We've always led - we've gone way far afield for decades now". But the proposal has languished in Congress, most recently when the House last month rejected a plan that would have carved out space-related combat functions from the Air Force. China and Russian Federation could be well-disposed toward establishing such an worldwide norm; after all, they have proposed a treaty to ban the placement of weapons in space entirely - a proposal the United States has blocked for a decade. "Naturally, we keep the closest watch on Washington's intentions and analyze the likely effects", Zakharova said. It also sets up new guidelines for satellite design and operation, to avoid collisions and spacecraft breakups.