Which of the following is NOT a function of the 75th Ranger Regiment?

The role of the 75th Ranger Regiment is primarily focused on special operations that emphasize rapid response and direct combat missions. Among its key functions are direct action missions, which involve engaging the enemy or seizing objectives through assault; special reconnaissance, which includes gathering intelligence in hostile environments; and regimental battlespace surveillance, which entails monitoring areas of operations to enhance situational awareness.

Humanitarian assistance, while a significant aspect of military operations, especially in counterinsurgency and stabilization missions, does not fall under the specific operational focus of the 75th Ranger Regiment. Their training and operational structure are designed to execute high-intensity combat operations rather than providing humanitarian aid. Therefore, the function that stands out as not aligning with the regiment's core capabilities is humanitarian assistance. This illustrates the regiment's specialization in combat rather than in support or aid roles.