Based on the 757-200 passenger aircraft, the C-32B is operated by the United States Air Force as an air transport that can slip into and out of most public or private air terminals without arousing attention. Markings on the C-32B are discrete and when necessary even these minimalist markings can be removed to further enhance the often clandestine missions on which they serve. Outwardly the C-32B appears to be a standard B-757 but internally the aircraft is equipped with the latest communications and avionics and mid-air refueling capability. This gives the C-32B practically unlimited range. Sometimes used as a passenger transport other times to carry cargo, the C-32B provides the U.S. government a unique tool for use in difficult or even hostile environments.