War of Martian Independence

The War of Martian Independence was a conflict fought between the colonists of Mars and United Earth personnel in the 22nd Century. The war won Mars' independence from United Earth, but many Martians felt that after Mars became a Federation Member State and the site of the Federation Starfleet's Utopia Planitia Shipyards that their world had become "a garage for Earth's starships." (Section 31: Rogue.)

That Mars became a Federation Member State was established in The Genesis Wave: Book II.''