Complex sentence: A naval aviator by trade, Amos has commanded the 3rd Marine Aircraft Wing during Operation Iraqi Freedom in 2003 and 2004, Marine Corps Combat Development Command, and was Deputy Commandant, Combat Development and Integration from 2004 to July 2008.
Split into simpler sentences: A naval aviator by trade, Amos has held command at multiple levels, most notably with the 3rd Marine Aircraft Wing during Operation Iraqi Freedom in 2003 and 2004. He previously served as Commanding General, Marine Corps Combat Development Command and Deputy Commandant, Combat Development and Integration from 2004 to July 2008.