Stress Test - training for marksmanship under physical duress simulating a combat situation

U.S. Army infantrymen looks through the optic on his rifle while practicing for a stress test in an undisclosed location, Aug. 30, 2019. A stress test is a training event used to test marksmanship ability while under physical duress simulating a combat situation. (U.S. Army photo by Staff Sgt. Alex Manne)

U.S. Army infantrymen engage targets from behind a barricade while conducting a stress test in an undisclosed location, Aug. 30, 2019. A stress test is a training event used to test marksmanship ability while under physical duress simulating a combat situation. (U.S. Army photo by Staff Sgt. Alex Manne)

A U.S. Army infantrymen maneuvers while conducting a stress test in an undisclosed location, Aug. 30, 2019. A stress test is a training event used to test marksmanship ability while under physical duress simulating a combat situation. (U.S. Army photo by Staff Sgt. Alex Manne)

U.S. Army infantrymen look on as their targets are being scored during a stress test in an undisclosed location, Aug. 30, 2019. A stress test is a training event used to test marksmanship ability while under physical duress simulating a combat situation. (U.S. Army photo by Staff Sgt. Alex Manne)

U.S. Army infantrymen scores rounds on a target during a stress test in an undisclosed location, Aug. 30, 2019. A stress test is a training event used to test marksmanship ability while under physical duress simulating a combat situation. (U.S. Army photo by Staff Sgt. Alex Manne)

U.S. Army infantrymen engage targets from behind a barricade while conducting a stress test in an undisclosed location, Aug. 30, 2019. A stress test is a training event used to test marksmanship ability while under physical duress simulating a combat situation. (U.S. Army photo by Staff Sgt. Alex Manne)

U.S. Army infantrymen engage targets while conducting a stress test in an undisclosed location, Aug. 30, 2019. A stress test is a training event used to test marksmanship while under physical duress simulating a combat situation. (U.S. Army photo by Staff Sgt. Alex Manne)

U.S. Army infantrymen perform flutter kicks while conducting a stress test in an undisclosed location, Aug. 30, 2019. A stress test is a training event used to test marksmanship while under physical duress simulating a combat situation. (U.S. Army photo by Staff Sgt. Alex Manne)

U.S. Army infantrymen take cover behind a barricade while practicing for a stress test in an undisclosed location, Aug. 30, 2019. A stress test is a training event used to test marksmanship while under physical duress simulating a combat situation. (U.S. Army photo by Staff Sgt. Alex Manne)

U.S. Army infantryman maneuvers while practicing for a stress test in an undisclosed location, Aug. 30, 2019. A stress test is a training event used to test marksmanship while under physical duress simulating a combat situation. (U.S. Army photo by Staff Sgt. Alex Manne)

A U.S. Army infantrymen buddy carries another soldier while conducting a stress test in an undisclosed location, Aug. 30, 2019. A stress test is a training event used to test marksmanship while under physical duress simulating a combat situation. (U.S. Army photo by Staff Sgt. Alex Manne)

U.S. Army infantrymen maneuver from cover and engage targets during for a stress test in an undisclosed location, Aug. 30, 2019. A stress test is a training event used to test marksmanship ability while under physical duress simulating a combat situation. (U.S. Army photo by Staff Sgt. Alex Manne)