What does the term "fire for effect" mean in mortar operations?

The phrase "fire for effect" in mortar operations specifically refers to the command to deliver a significant and concentrated volume of munitions onto a target after the initial adjustments have been made. This command is issued when the forward observer or fire controller is confident that the rounds will achieve the desired impact on the target area. The focus here is on maximizing the ordnance delivered to ensure that the target is effectively neutralized, as opposed to merely adjusting for accuracy or testing equipment.

This tactical decision is often made after initial rounds are fired for adjustment (to verify how close the rounds are to hitting the target) and is characterized by the intention to overwhelm the target with a series of shells within a short time frame. It underscores the importance of coordinated fire support in combat scenarios, where delivering a high volume of rounds quickly can significantly enhance the chances of mission success.