Marc Henry Sasseville Frontera[note 1] (born March 23, 1963) is a retired United States Air Force lieutenant general who served as the 12th Vice Chief of the National Guard Bureau.

He was one of four pilots given the mission of finding United Airlines Flight 93 during the September 11 attacks and destroying it, even if it meant ramming the aircraft.

In 1992, he went overseas again as flight commander of the 13th Fighter Squadron, and chief of standardizations and evaluations of the 35th Operations Group at Misawa Air Base in Japan.

Ziad Jarrah, a trained pilot, then took control of the aircraft and diverted it back toward the east coast of the United States in the direction of Washington, D.C.

[4] That morning Major Daniel Caine, supervisor of flying with the 113th Wing of the D.C. Air National Guard, received a call that the Secret Service wanted fighter jets launched over Washington, D.C.

Lieutenant Colonel Marc Sasseville called Brigadier General David Wherley, the commander of the 113th Wing, to get permission to use their "war-reserve missiles".

The four pilots who were available for the mission, who received authorization to get airborne in their fighter jets, were Sasseville, Lieutenant Heather Penney, Captain Brandon Rasmussen, and Major Daniel Caine.

Since the fighter jets were absent of missiles and packed only with dummy ammunition from a recent training mission, there was only one way to do it and that was by ramming the aircraft.

"[5] The fighter jets passed over the ravaged Pentagon building; however, it was not until hours later that they would find out that United 93 had already gone down in a field outside Shanksville, Pennsylvania, killing all 44 people aboard including the 4 hijackers.

Upon completion of the course, he was assigned as Deputy Director for Readiness in the Office of the Assistant Secretary of Defense Reserve Affairs in the Pentagon.