2d Battalion, 3d Marines

The Archives of 3rd Battalion, 1st Marines Kilo Co.

3rd Battalion, 1st Marines (3/1), nicknamed the "Thundering Third," is a light infantry battalion in the United States Marine Corps, based at Camp Pendleton, California, and part of the 1st Marine Regiment.

1st Battalion, 1st Marines

Because threats to our Nation are always shifting, so are the environments in which Marines train. Training often simulates the chaos of combat so that Marines are prepared to decisively defeat threats when they arise.