A Rare Look Inside US Navy P-8A Poseidon Surveillance Aircraft – U.S. Navy crew assigned to Patrol Squadron Eight (VP-8) provide range clearance for a sinking exercise during Valiant Shield 16, 220 nautical miles Northeast of Guam. Units from the U.S. Navy, Air Force and Marine Corps provided live fire from ships and aircraft in order to sink the decommissioned USS Rentz (FFG 46). The Boeing P-8 Poseidon (formerly the Multimission Maritime Aircraft or MMA) is a military aircraft developed for the United States Navy (USN). The aircraft has been developed by Boeing Defense, Space & Security, modified from the 737-800ERX. The P-8 conducts anti-submarine warfare (ASW), anti-surface warfare (ASUW), and shipping interdiction, along with an electronic signals intelligence (ELINT) role. Conducting these types of joint training events provide service members the opportunity to improve communication while gaining proficiency in tactics, targeting and live firing against a surface target at sea. AiirSource Military covers events and missions from the United States Armed Forces: Army, Navy, Marine Corps, Air Force, and Coast Guard.