Why is "support by fire" important during a military operation?

"Support by fire" is a critical tactic in military operations as it facilitates concealed movement for friendly forces. This approach involves one unit providing suppressive fire to ensure cover for a maneuvering unit, allowing them to reposition or advance without drawing enemy fire. By effectively distracting the enemy and keeping them engaged, supporting units create a window for tactical movements. This tactic is essential during assaults, advances, or retreats, helping to minimize risk and improve overall operational effectiveness.

In this context, while other aspects of military operations like tactical retreats or enhancing defensive positions may also play a role in a broader context, the primary focus of "support by fire" is to enable safe movement of troops across the battlefield.