Marine Corps Roles, Positions - Career Divisions

​Roles in the Corps. Ground Combat Roles. As the only element in the Marine Corps that can seize and occupy terrain, roles within the Ground Combat Element exist to win battles on the ground by asserting combat power and dominance on the battlefield. These Marines excel at conducting land-based and amphibious operations of an offensive, defensive, humanitarian, reconnaissance or security nature. Trained in the art of land warfare, these Marines will often be the first on the scene to confront threats around the world. Featured below are just a sample of the Military Occupational Specialties (MOS) from which Enlisted Marines and Marine Officers choose. As the only element in the Marine Corps that can seize and occupy terrain, roles within the Ground Combat Element exist to win battles on the ground by asserting combat power and dominance on the battlefield. These Marines excel at conducting land-based and amphibious operations of an offensive, defensive, humanitarian, reconnaissance or security nature. Trained in the art of land warfare, these Marines will often be the first on the scene to confront threats around the world. Featured below are just a sample of the Military Occupational Specialties (MOS) from which Enlisted Marines and Marine Officers choose.