Marc Henrys Sasseville Frontera (born March 23, 1963) is a United States Air Force lieutenant general who currently serves as the 12th Vice Chief of the National Guard Bureau. He previously served as the commander of the Continental United States North American Aerospace Defense Command Region and concurrently as commander of the First Air Force (Air Forces Northern) from June 2019 to August 2020. Sasseville previously served as commander of the 113th Wing, District of Columbia Air National Guard at Andrews Air Force Base in Maryland and was the first Hispanic American to hold the position. On September 11, 2001, Sasseville was the acting operations group commander under the 113th Wing of the D.C. Air National Guard. He was one of four pilots given the mission of finding United Airlines Fl