Surgical removal of part or all of the colon. colectomy. surgical excision of part or all of the colon, performed to treat cancer of the colon, diverticulitis, or severe chronic ulcerative colitis. For several days before surgery a low-residue diet is prescribed.
Airborne Rangers are a direct-action force of raiders. The U.S. Army website describes a regiment of Airborne Rangers as a lethal, agile and flexible force.. They must maintain a state of combat readiness and, when deployed, are asked to complete complex, often dangerous missions.
The 101st Airborne Division (Screaming Eagles) is an elite modular specialized light infantry division of the United States Army trained for air assault operations. and has been referred to as the tip of the spear. It is the most potent and tactically mobile of the U.S. Army's divisions.