55th Wing with headquarters at Offutt Air Force Base, Nebraska, is 25 AF's largest wing composed of 6 groups and 31 squadrons located worldwide, employing 48 aircraft, including 12 models of 3 different types. Mission responsibility includes the Air Force's most diverse flying operation supporting worldwide dominance in ISR, electronic attack, C2, Presidential support, nuclear treaty verification, and precision awareness to national leadership and warfighters across the spectrum of conflict any time, any place. As host unit for Offutt AFB, the wing provides infrastructure support to over 50 associate units, including United States Strategic Command and AF Weather Agency. The 55 WG is the largest wing in Air Combat Command and the second largest in the Air Force.