Complex sentence: JBLM McChord Field is a United States Air Force base in Pierce County, Washington, United States, formerly named McChord Air Force Base, and is now part of the larger Joint Base Lewis-McChord.
Split into simpler sentences: JBLM McChord Field is a United States Air Force base in Pierce County, Washington, United States. It was formerly named McChord Air Force Base and is now part of the larger Joint Base Lewis-McChord.