Coalition of Planets

The Coalition of Planets was a mutual-defense alliance created between United Earth, the Confederacy of Vulcan the Andorian Empire and Tellar.

The Coalition was proposed by Nathan Samuels, the Prime Minister of United Earth in late 2154, in an effort to build upon the work of Starfleet Captain Jonathan Archer of Enterprise NX-01, in organizing a joint military operation amongst these powers to thwart a Romulan plot to ignite interstellar war between those worlds. (ENT episodes: "Demons," "Terra Prime")

The Coalition Compact was finalized and signed in March of 2155, with Prime Minister Samuels as one of the signatories. The Coalition of Planets proved to be one of the most vital steps leading to the formation of the United Federation of Planets in 2161. (ENT novel: The Good That Men Do.)