Coast Guard Cadet Nikolaos Kalfas looks for contacts on the horizon, May 23, 2023, while Eagle navigates in the North Sea. Eagle, originally operated by the pre-World War II German navy and later taken as a war reparation by the United States, served as an at-sea classroom for U.S. Coast Guard cadets and officer candidates during its four-month summer training deployment. (U.S. Coast Guard photo by Petty Officer 3rd Class Carmen Caver)