Complex sentence: Fort Bliss, one of the largest military complexes of the United States Army, lies to the east and northeast of the city, with training areas extending north into New Mexico, up to the White Sands Missile Range and neighboring Holloman Air Force Base in Alamogordo.
Split into simpler sentences: Fort Bliss, one of the largest military complexes of the United States Army, lies to the east and northeast of the city. Its training areas extend north into New Mexico up to the White Sands Missile Range and neighboring Holloman Air Force Base in Alamogordo.