Information:  - Major General Jack W. Ramsaur II ( born c. 1952 ) is the mobilization assistant to the commander , United States Strategic Command , Offutt Air Force Base , Nebraska . He is the principal advisor to the commander on Reserve Component matters . He assists the director in planning and executing all assigned missions .  - Air Combat Command (ACC) is one of ten Major Commands (MAJCOMs) in the United States Air Force, reporting to Headquarters, United States Air Force (HAF) at the Pentagon.  - Offutt Air Force Base is a U.S. Air Force installation near Omaha, and lies adjacent to Bellevue in Sarpy County, Nebraska. It is the headquarters of the U.S. Strategic Command (USSTRATCOM), the Air Force Weather Agency, and the 55th Wing (55 WG) of the Air Combat Command (ACC), the latter serving as the host unit.  - The 55th Wing is a United States Air Force unit assigned to Air Combat Command. The wing is primarily stationed at Offutt Air Force Base, Nebraska, but maintains one of its groups and associated squadrons at Davis-Monthan Air Force Base, Arizona as a geographically separated unit.    What object entity has the relation of 'military branch' with the subject 'jack ramsaur ii'?   Choices: - air force  - united states air force
A:
united states air force