Complex sentence: The 1st Battalion, 9th Infantry Regiment is a mechanized infantry battalion stationed at Campy Hovey, South Korea, and is part of the U.S. Army's 2d Infantry Division.
Split into simpler sentences: The 1st Battalion, 9th Infantry Regiment (1/9 INF) is a mechanized infantry battalion stationed at Camp Hovey, South Korea. This battalion, as well as the entire regiment, is an element of the U.S. Army's 2d Infantry Division.