The Boeing AGM-69 SRAM (Short-range attack missile) was a nuclear air-to-surface missile designed to replace the older AGM-28 Hound Dog stand-off missile. The requirement for the weapon was issued by the Strategic Air Command of the USAF in 1964, and the resultant AGM-69A SRAM entered service in 1972. It was carried by the B-52, the FB-111A, and, for a very short period starting in 1986, by the B-1Bs based at Dyess AFB in Texas. SRAMs were also carried by the B-1Bs based at Ellsworth AFB in South Dakota, Grand Forks AFB in North Dakota, and McConnell AFB in Kansas up until late 1993.