Complex sentence: While active, 159th CAB made the 101st Airborne Division the only US Army Division with two organic aviation brigades, and currently the 101st Combat Aviation Brigade is the only CAB supporting the unit at Fort Campbell.
Split into simpler sentences: While active, 159th CAB made the 101st Airborne Division the only US Army Division with two organic aviation brigades. Currently the 101st Combat Aviation Brigade is the only CAB supporting the 101st Airborne Division at Fort Campbell.