On the first day of the Gulf War 24 February 1991, the 101st Airborne Division (Air Assault) began its attack with its Boeing AH-64 Apaches, Bell AH-1 Cobras, 60 Sikorsky UH-60 Black Hawks and 40 Boeing CH-47 Chinooks augmented by the XVIII Airborne Corps' 18th Aviation Brigade and began lifting the 1st Brigade into what became Forward Operating Base Cobra (FOB), 93 miles into Iraq and halfway to the Euphrates River.