In military science, suppressive fire (commonly called covering fire) is 'fire that degrades the performance of an enemy force below the level needed to fulfill its mission'. Suppression is usually only effective for the duration of the fire. It is one of three types of fire support, which is defined by NATO as 'the application of fire, coordinated with the maneuver of forces, to destroy, neutralize or suppress the enemy.' In military science, suppressive fire (commonly called covering fire) is 'fire that degrades the performance of an enemy force below the level needed to fulfill its mission'. Suppression is usually only effective for the duration of the fire. It is one of three types of fire support, which is defined by NATO as 'the application of fire, coordinated with the maneuver of forces, to destroy, neutralize or suppress the enemy.'