Stroke: a stroke occurs when there is a blocked (embolism) or ruptured (aneurysm/hemorrhage) blood vessel that supplies the brain, leading to severe and permanent damage to the tissues of the brain. A very severe stroke can cause brain death.
MCT: Marine Combat Training. All non-infantry Marines, upon completion of recruit training, will undergo Marine Combat Training (MCT). MCT consists of 29 days of battle skills training that enables Marines, regardless of MOS, to operate in a combat environment.
Air Force Pararescue / Combat Rescue Officer Development Course. This two-week course provides physical training under the oversight of sports physiologists and swimming trainers to familiarize and teach the trainees the required skills required to succeed in the indoctrination course to follow.