Smaller and more mobile is the way of the future. Here's What You Need to Remember: A Marine Littoral Regiment, about 2,200 Marines in total, would be made up of three separate but interconnected groups, a combat unit, an anti-aircraft team, and a logistics element. The threat of an expansionist China—now the world’s largest naval power—is forcing the United States Marine Corps to reevaluate how it conducts business. During the Marine Corps’ Modern Day Marine event, held virtually this year due to the ongoing pandemic, one of the Marine Corps’ top brass explained just what exactly is being done to modernize the Corps for a future fight in the Pacific.