CELTIC SEA (April 14, 2021) Sailors assigned to the amphibious transport dock ship USS San Antonio (LPD 17) are lifted in a rigid-hull inflatable boat by the ship's knuckle boom crane during routine boat operations, April 14, 2021. San Antonio is operating in the Celtic Sea with Amphibious Squadron 4 and the 24th Marine Expeditionary Unit (MEU) as part of the Iwo Jima Amphibious Ready Group. (U.S. Navy photo by Mass Communication Specialist Jacob M. Turrigiano)