Complex sentence: A small portion of Fort Ord remains under Army control and is now called the Presidio of Monterey Annex, which includes the Ord Military Community (explained below), California National Guard posts, the DoD Center, and the gunnery ranges.
Split into simpler sentences: A small portion of Fort Ord remains under Army control and is now called the Presidio of Monterey Annex,. It includes the Ord Military Community (explained below), California National Guard posts, the DoD Center, and the gunnery ranges.