The Marines are trying to deploy in a herringbone fashion so that they are protected from all sides, as well as at the front and the rear.

CNN: Savidge

They're the Marines of Camp Lejeune, preparing to deploy and now serving in Afghanistan to protect Americans here at home.

WHITEHOUSE: President Obama Speaks to the Veterans of Foreign Wars

For example, explains David Berteau, a defense expert at the Center for Strategic and International Studies in Washington, it costs more to deploy marines to quell an insurgency than it does for U.S. troops to train Afghan security forces.

FORBES: Spending