Complex sentence: The United States Central Command (USCENTCOM or CENTCOM) is a theater-level Unified Combatant Command of the U.S. Department of Defense, established in 1983, taking over the 1980 Rapid Deployment Joint Task Force (RDJTF) responsibilities.
Split into simpler sentences: The United States Central Command (USCENTCOM or CENTCOM) is a theater-level Unified Combatant Command of the U.S. Department of Defense. It was established in 1983, taking over the 1980 Rapid Deployment Joint Task Force (RDJTF) responsibilities.