The first new military service in the US in more than 70 years will fall under the Air Force.
The funding allocation was confirmed when the US President Donald Trump signed the $738 billion annual US military budget.
While the troops will not be put into orbit, they are expected to protect American assets such as the communication and surveillance satellites.
Speaking at an army base near Washington, the President said, "amid grave threats to our national security, American superiority in space is absolutely vital."
US Army chief of staff ousted by Hegseth
Trump fires Pam Bondi as US attorney general
Security Council reaffirms support for GCC security, sovereignty
Dozens of countries discuss coalition to secure passage through Strait of Hormuz
A month into war, Lebanon's prime minister says no end in sight
