 Located on a 1,500-acre tract of land adjacent to Camp Lejeune, North Carolina, Camp Johnson is home to Marine Corps Combat Service Support Schools. The commanding officer Marine Corps Combat Service Support Schools also serves as the Camp Johnson area commander for the commanding general Marine Corps Installations East. The mission of Marine Corps Combat Service Support Schools is to provide formal training and sustain the transformation of entry-level Marines and provide career-level training for Marines in the fields of. Financial management, ground supply and distribution, logistics operations, and personal administration. Marine Corps Combat Service Support Schools also includes Marine Corps Water Survival School, which provides formal training and program safety oversight for water survival military occupational skill field. Marine Corps Detachment Inner Service Postal Training Activity for Jackson, South Carolina. The Inner Service Postal School trains personnel from all branches of the Department of Defense in the operations of a Postal Service Center. Marine Corps Detachment Joint Multitactical Data Link School, Fort Bragg, North Carolina. The Joint Multitactical Data Link School trains in tactical data link interoperability concepts and procedures for the chairman of the Joint Chiefs of Staff to meet joint and coalition commander's mission needs. Marine Corps Combat Service Support Schools provides outstanding training that supports Marine Corps occupational fields and operating forces by providing combat-capable Marines prepared for service in every climate place in the operating forces and establishments.