The Marines would be among the first to engage in combat if a war broke out. Key point: The Marines have a variety of weapons and tools with which to wage and win war. Here are some of the ones they would turn against Kim. In the event of a conflict on the Korean Peninsula, U.S. and South Korean forces will root and and destroy the regime of Kim Jong-un. The need to properly secure the country’s weapons of mass destruction will necessitate an invasion of North Korea, much of which will come by sea. Leading the way will be the U.S. Marine Corps (USMC). Here are five USMC weapon systems necessary in Korean War II.