Grunts and Jarheads: Rethinking the Army-Marine Division of Labor by Council member Dr. Steven Metz. US Army Strategic Studies Institute Op-Ed.

Debate rages today about the future of America’s ground forces. Gone are the days when serious strategists could suggest that that utility of landpower was receding. Now no one questions its importance. But there is disagreement on the type and number of ground forces that the nation needs.

Among the most contentious points are the size of the force (by how much should the Army and Marines be enlarged?), specialized formations for irregular warfare and stabilization operations, and the role of the reserve components. All of these are vitally important. There is, though, another issue which receives less attention: the relationship between the Army and the Marine Corps—the two primary components of America’s ground forces. Does the United States need two ground forces with virtually similar capabilities? I once heard a perplexed foreign officer say, “I’ll never understand your military—not only does your navy have an army, but your navy’s army has an air force!” Is there a strategic reason for this beyond simple tradition? If not, what should the division of labor within the ground forces be? These are not new questions but are ones that should be asked anew, given the evolving national security environment...