Vietnam in 1973. Typically, the AH-1 provided fire support for ground forces and escorted transport helicopters, in addition to other roles, including aerial rocket artillery (ARA) battalions in the two Airmobile divisions. They also formed "hunter killer" teams by pairing with OH-6A Cayuse scout helicopters; a team normally comprised a single OH-6 flying slow and low to find enemy forces. If the OH-6 drew fire, the Cobra could strike at the then revealed enemy. On 12 September 1968, Capt. Ronald Fogleman was flying an F-100 Super Sabre when the aircraft was shot down and he ejected north of Bien Hoa. Fogleman became the only pilot to be rescued by holding on to an Army AH-1G's deployed gun-panel door. Bell built 1,116 AH-1Gs for the U.S. Army between 1967 and 1973, and the Cobras chalked up over a million operational hours in Vietnam; the number of Cobras in service peaked at 1,081. Out of nearly 1,110 AH-1s that were delivered between 1967 and 1973, approximately 300 were lost to a combination of combat and accidents during the conflict. During Operation Lam Son 719 in Southeastern Laos, 26 U.S Army AH-1Gs were destroyed while a further 158 sustained some level of damage. The U.S. Marine Corps also operated the AH-1G Cobra in Vietnam for a short time before acquiring the twin-engine AH-1J Cobras. The AH-1Gs had been adopted by the Marines as an interim measure, a total of 38 helicopters having been transferred from the U.S. Army to the Marines in 1969. During Operation Urgent Fury, the invasion of Grenada in 1983, several AH-1T Cobras were deployed to fly close air support and helicopter escort missions. On the first day of the invasion, two of the four Cobras involved were lost to anti-aircraft fire in the attack on Fort Frederick. During 1989, Army Cobras participated in Operation Just Cause, the U.S. invasion of Panama. It operated alongside its eventual successor in US Army service, the Boeing AH-64 Apache, for the first time during the combat in Panama. During Operations Desert Shield and Desert Storm in the Gulf War (1990–91), both the Cobras and SuperCobras deployed in a support role. The USMC deployed 91 AH-1W SuperCobras while the US Army operated 140 AH-1 Cobras of various models in the theatre; these were typically operated from dispersed forward operating bases in close proximity to Saudi Arabia's border with Iraq. Three AH-1s were lost in