Complex sentence: From December 2002 to May 2003, the 1st Brigade, 82D operated as the U.S. Army's sole combat brigade in Afghanistan and conducted over a dozen Brigade Air Assault operations, numerous Ground Assault Convoy operations, and several Air Drop and Civil Military operations.
Split into simpler sentences: From December 2002 to May 2003, the brigade was the U.S. Army's sole combat brigade in Afghanistan. It conducted over a dozen Brigade Air Assault operations, numerous Ground Assault Convoy operations, and several Air Drop and Civil Military operations.