Earth Starfleet

The Earth Starfleet was the organization founded by the nations of Earth in 2132 to coordinate stellar exploration and defense operations amongst all nations of the Earth.  The largest founding organization was NASA, with a number of US Air Force, US Marine Corps, and US Navy personnel who participated in its creation, leading to the Starfleet organization resembling a military in its rank structures.  Coming from NASA, as well as the British Space Agency, German Space Exploration Administration, Chinese Star Exploration Commission, and other participants, the main focus of the agency was on peaceful exploration due to long-held human fears of militarizing space. 
==Organization==
Starfleet was an agency of the United Earth Space Probe Agency (UESPA), charged with extra-solar exploration and defense.  The Military Assault Command Organization (MACO) would use Starfleet ships for transport, as would the United Earth Marine Corps Expeditionary Force (UEMCEF). As one of several agencies under one umbrella, Starfleet competed for resources and money with the other agencies.
At the beginning, Starfleet was divided up into several broad specialties, namely engineering, science, and ship command, which carried through to the Federation Starfleet that superseded it.
Under the authority of UESPA, Starfleet's mission was primarily exploration, though in recognition of the possibility of defensive situations, military considerations to ships were made. Sciences and Medical were the most staffed divisions after ship operations, with command and flight the third most populated operational specialty.
==Structure==
The Office of the Chief of Starfleet Operations includes the Chief of Starfleet Operations, the Vice-Chief of Starfleet Operations, the Deputy Chiefs of Starfleet Operations, the Assistant Chiefs of Starfleet Operations, the Chief of Legislative Affairs, the Director of Starfleet Warp Propulsion, the Master Chief Petty Officer of the Starfleet, and other members of the Starfleet, MACO, UESPA, or civilians in the Department of the Starfleet assigned or detailed to the office.
==Ships==
*Daedalus Class: 20
*NX-Class: 12
*Intrepid Class: 16