ATLANTIC OCEAN (June 12, 2021) Chief Gunner�s Mate Michael Rebhan, left, from Orlando, assigned to the Arleigh Burke-class guided missile destroyer USS Lassen (DDG 82), instructs Sailors on how to shoot the messenger line before a replenishment-at-sea with USNS Joshua Humphreys (T-AO-188), June 12, 2021. Lassen is underway in the Atlantic Ocean supporting the aircraft carrier USS Gerald R. Ford (CVN 78) during Full Ship Shock Trials. The U.S. Navy conducts shock trials of new ship designs using live explosives to confirm that our warships can continue to meet demanding mission requirements under harsh conditions they might encounter in battle. (U.S. Navy photo by Mass Communication Specialist 3rd Class Zachary Melvin)