SIERRA DEL RETIN, Spain (June 23, 2011) A Spanish Piranha, right, from 9th Mechanized Company, 3rd Mechanized Landing Battalion, passes by an amphibious assault vehicle assigned to Easy Company, Battalion Landing Team, 2nd Battalion, 2nd Marine Regiment, 22nd Marine Expeditionary Unit, during a mechanized raid. The training is part of the Spanish Amphibious Bilateral Exercise, a 10-day exercise intended to increase interoperability between U.S. and Spanish marines. (U.S. Marine Corps photo by Cpl. Dwight Henderson)