Forward Operating Base Salerno is a former forward operating base used by the U.S. military from 2002–2013 during Operation Enduring Freedom. Located in the southeastern province of Khost, Afghanistan, near the city of Khost, FOB Salerno was nicknamed "Rocket City" for the numerous rocket and mortar indirect fire attacks targeting the base over the ten years that US forces occupied to post. On November 1, 2013, U.S.