Complex sentence: United States Army Training and Doctrine Command (TRADOC) is the command charged with overseeing training of Army forces, the development of operational doctrine, and the development and procurement of new weapons systems.
Split into simpler sentences: United States Army Training and Doctrine Command (TRADOC) is a military command of the United States Army. It is charged with overseeing training of Army forces, the development of operational doctrine, and the development and procurement of new weapons systems.