Original sentence: Lalor then enrolled at Pace University School of Law, but left school when his reserve infantry unit was called to active service after the September 11, 2001 attacks on the World Trade Center, with Lalor training at Camp Lejeune, North Carolina as part of a "ready reaction force
Edited sentence: Lalor then enrolled at Pace University School of Law, but left school when his reserve infantry unit was called to active service after the September 11 attacks on the World Trade Center in 2001, with Lalor training at Camp Lejeune, North Carolina as part of a "ready reaction force