Baltimore/Washington International Thurgood Marshall Airport (IATA: BWI, ICAO: KBWI, FAA LID: BWI) is an international airport located in Linthicum in northern unincorporated Anne Arundel County, Maryland. The airport is 9 miles (14 km) south of downtown Baltimore and 32 miles (51 km) northeast of Washington, D.C.
1. staff sergeant-a noncommissioned officer ranking above corporal and below sergeant first class in the Army or Marines or above airman 1st class in the Air Force. sergeant-any of several noncommissioned officer ranks in the Army or Air Force or Marines ranking above a corporal.
An old adage in the U.S. Army and the U.S. Marine Corps is that sergeants actually run everything. In both the Army and the Marines, a sergeant major is the most senior sergeant and holds the enlisted paygrade of E9. Sergeants major are typically the senior enlisted advisors to the officers commanding their units. In most cases, a sergeant major is also responsible for much of the direction and performance of the enlisted personnel within his military unit.