In the past 20 years, the 13th Marine Expeditionary Unit has conducted numerous expeditionary operations throughout the globe...

"This training works," said Petty Officer 2nd Class Ruben Levya, a CLS instructor and assistant leading petty officer for Battalion Landing Team 1/1's corpsmen. "I've treated casualties in combat and a couple Marines who I taught back in 2005, saved their fellow Marines lives in Iraq."