The S2 is the principal staff officer for all matters concerning military intelligence (MI), counterintelligence, security operations, and military intelligence training. Staff officers in the U. S. Navy provide specialized support to Line Officers and to all other persons in the organization. ... Military intelligence (abbreviated MI, int. ...

The S2 is responsible for collecting, analyzing, and disseminating information about the enemy and the area of interest. The S2 also prepares the collection plan designed to support the staff-developed decision-support template. The battalion commander has specific information needs relating to the unit's area of operation and specific tactical interests. The two critical categories of information available to both the battalion and brigade commander are intelligence and combat information.