Complex sentence: The army is twice as large as the other services combined with about 15,000 active duty personnel, consists of six infantry brigades, a combat support brigade, a combat service support brigade and the Air Cavalry squadron.
Split into simpler sentences: The army is twice as large as the other services combined with about 15,000 active duty personnel. It consists of six infantry brigades, a combat support brigade, a combat service support brigade and the Air Cavalry squadron.