Dan Davis, University of Delaware Lead Archaeologist, begins a photomosaic over a World War II B-24 Liberator crash site in the Baltic Sea southeast of Langeland, Denmark, Aug. 20, 2021. The University of Delaware team, with assistance from the Royal Danish Navy, is creating a detailed site map of the wreckage and surrounding debris field for the Defense POW/MIA Accounting Agency using sonar, magnetometer, and diver-acquired data. Ultimately the team is trying to identify promising areas of the plane where remains of lost crewmen might be found. (Photo by Allan Rosenberg, Royal Danish Navy)