Ltt Gen. Marc Sasseville was born into an Air Force family and that played a significant role in his decision to attend the U.S. Air Force Academy and become an Air Force officer. After 14 years on active duty, Sasseville shifted to the Air National Guard in 1999 and also became a commercial airline pilot.

On September 11, 2001, Sasseville was serving with the 113th Wing of the District of Columbia Air National Guard at Andrews Air Force base when Al Qaeda terrorists hijacked four airliners. Once the second plane struck the World Trade Center, Sasseville and everyone else on base knew it was a terrorist attack. But would there be more planes? And would they be headed for Washington, D.C.?

In this edition of Veterans Chronicles, Gen. Sasseville tells how that day unfolded. He explains what development required pilots in the D.C. Air National Guard to scramble their F-16's and be ready to confront any other other planes being flown by terrorists. But they had a big problem. None of their F-16's were armed with missiles and there was no time to wait for that. The reality soon hit home: if they needed to stop an airliner, they'd have to hit it with their own planes. If that was required, they would not be coming home.

Sasseville takes us through his thinking on the most effective way to strike an airliner with an F-16. Ultimately, that would not be necessary due to the heroism of the passengers aboard United Airlines Flight 93. Sasseville honors them and he tells us what it was like flying near the Pentagon not long after it was attacked.

He also reveals the unexpected assignment he received later in that day on 9/11 and details his time as commander of the 410th Expeditionary Operations Support Squadron in the early days of the Iraq War. Finally, he reflects upon what was really asked of him on 9/11 and his instinctive willingness to put his life on the line to protect our nation.