Titan II

The Titan II was an American Human-rated expendable rocket that was in service with NASA and the United States Air Force in the mid-20th century. This rocket was used for national defense and space exploration.

Titan II rockets were later used in the mid-21st century, during World War III, as a type of nuclear missile.

A Titan II formed the framework and launch vehicle for Zefram Cochrane's experimental warp ship, the Phoenix. 

During the 23rd century, a photo of a Titan II rocket hung on a corridor wall just outside the base commander's office at Starbase 11 in 2267.