What does the 'S' in the breaching fundamentals SOSRA represent?

The 'S' in the breaching fundamentals SOSRA represents "Suppress." Suppression is a critical element in breaching operations as it aims to neutralize or diminish the enemy's ability to engage friendly forces while they are executing the breach. This allows the assaulting elements to move closer to the obstacle and establish a foothold without being exposed to enemy fire. Effective suppression involves the use of direct and indirect fire to maintain the enemy's focus and reduce their combat effectiveness, thereby facilitating a successful breach and subsequent exploitation of the entry point.