The United States Navy, more commonly called the USN or U.S. Navy was a branch of the military of the United States of America. The Navy was tasked with conducting naval operations for the United States. The Navy traces its history back to the Continental Navy, which was active during the American Revolutionary War. The modern Navy came into being in 1794 as the new nation faced threats from rival powers to its interests.
In 1986, the U.S. Navy's aircraft carrier USS Enterprise (CVN-65) was boarded by Pavel Chekov and Nyota Uhura. The two had traveled back to that year from the 23rd century along with the other command crew members of the late USS Enterprise (NCC-1701). Chekov and Uhura had boarded the Enterprise to collect high energy protons from the ship's fission reactor, in the hopes that the dilithium crystals of the HMS Bounty could be regenerated. A power loss registered in the ship, and the Enterprise crew realized there were intruders on board. Uhura was able to escape, but Chekov was captured. (TOS movie: Star Trek IV: The Voyage Home)
The United Earth Starfleet and the later Federation Starfleet both adopted their rank structures from that used by the United States Navy and other Naval forces, along with many of the customs and traditions of these forces.
|Militaries of Earth|
|Confederate States of America:||Army|
|Germany:||Luftwaffe • Schutzstaffel|
|United Kingdom:||Air Force • Navy|
|United States of America:||Army • Navy • Air Force • Marine Corps|
|United Earth:||Ground Forces • Navy • Military Assault Command Operations|
The US Navy was the seagoing service of the United States. The Navy also became responsible for aviation duties conducted from aircraft carriers.
Upon hearing the name "USS Enterprise", John Christopher mistook the ship for being a Navy vessel, before James Kirk corrected him, stating that UESPA was a "combined service." (TOS: "Tomorrow is Yesterday")
The USMC was a branch of military service, a military corps reporting to the US Department of the Navy (contrary to popular belief, it did not fall under the authority of the uniformed branch of the Navy). The Marines were used as naval infantry, specializing in fighting on ships and conducting amphibious assaults, and coordinated air/land/sea assaults.
The US Army Air Corps was an aviation division of the US Army in the early 20th century. As atmospheric flight became more advanced, this became a separate service, the US Air Force. (DS9: "Little Green Men")
The US Air Force was a branch of the United States armed forces responsible for deploying aircraft, satellites and missiles for purposes of defense, assualt, and surveillance. The Air Force consisted chiefly of aircraft, their aircrews, and personnel to maintain and support them. The Air Force did not comprise the bulk of the US's combat aviators however, since the innovation of the aircraft carrier left much of that country's tactical aviation in the hands of the US Navy. Strategic deterrant was most visibly the province of the Air Force, which maintained a bomber fleet in the air around the clock during nearly the entire Cold War, and intercontinental ballistic missiles (one of which would eventually be converted to a launcher for the prototype warpship Phoenix).
In 2267, an accident catapulted the USS Enterprise back three centuries to 1969. Its appearance in that year, in the airspace over a military base, caused alarm. An Air Force pilot, Captain John Christopher attempted to intercept the Enterprise. In one version of history, his plane was destroyed and he was taken aboard the ship; in the version "recreated" by Spock's slingshot method of returning to the future, the ship vanished before he could reach it, and he returned to his base, unaware of what he had seen. (TOS: "Tomorrow is Yesterday")
In an illustration he did for the Incredible Tales magazine, Roy Ritterhouse drew a space station that was operated by the US Air Force. The illustration later became part of the Deep Space 9 novella. (DS9: "Far Beyond the Stars")
The USAF Air Police was the branch of the USAF responsible for defending airbases and facilities at the time when Captain John Christopher was taken aboard the Enterprise. (TOS: "Tomorrow is Yesterday")
Another branch of the armed forces was the United States Coast Guard, who were credited for assisting in the making of Star Trek IV: The Voyage Home. However, they were never mentioned on Star Trek.