Commonwealth Minutemen

The Commonwealth Minutemen are a faction in the Commonwealth. They are possibly based on the 'Minutemen' that helped fight the British during the Revolutionary War. According to Garvey he's the last of Minutemen.

Interactions with the player character
Soon after escaping the vault, the Sole Survivor comes across the Museum of Freedom under attack by raiders. They must fight their way upstairs, where they are introduced to Preston Garvey, leader of the Commonwealth Minutemen, who is leading a group against the raiders.

Appearances
The Commonwealth Minutemen appear in Fallout 4 and are mentioned in Fallout Shelter.