United States Navy

The United States Navy was the naval branch of the United States armed forces. The Navy was also responsible for aviation duties conducted from aircraft carriers.

The United States Navy wore officer rank insignia somewhat similar to the 23rd century Starfleet, that being a series of sleeve stripes to denote rank. Starfleet and US Navy uniforms, however, are quite different in appearance. One 20th century observer once remarked "that's hardly a Navy uniform" when seeing a Starfleet uniform. 

Benny Russell served in the Navy prior to 1938 where he wrote some of his earlier science fiction stories. 

In 1968, John Christopher, upon hearing the name "USS Enterprise (NCC-1701)", mistook the starship for being a Navy vessel, before Captain Kirk corrected him, stating that UESPA was a "combined service." 

In 1986, the aircraft carrier Enterprise was docked at the Alameda Naval Base in San Francisco. 

The 24th century equivalent of the United States Navy is the Federation Naval Patrol.