The signing followed President Donald Trump's efforts to intensify the country's space exploration efforts.
Signed by USSF Chief of Space Operations Gen. John W. Raymond and NASA administrator James F. Bridenstine, the memo was signed as NASA embarks on its Artemis program that aims to launch the "first woman and the next man" on the moon by 2024.
Trump has focused on the American space program ever since becoming president. In 2017, he amended an earlier space exploration memorandum first signed by former President Barack Obama in 2010. He then established the USSF as an independent military branch in late 2019 when he signed the 2020 National Defense Authorization Act.
Prior to this, the USSF was under the command of the United States Air Force.