LISBON, Portugal (Sept. 26, 2020) Acting Under Secretary of the Navy Gregory J. Slavonic meets with Adm. Antonio Calado, the head of the Portuguese navy, and other senior Portuguese navy officers at the Portuguese Naval Headquarters in Lisbon, Portugal, Sept. 26, 2020. Slavonic traveled to Denmark and Portugal, where he engaged with senior defense and military officials, identifying opportunities for the Department of the Navy to enhance interoperability and increase cooperative efforts. (U.S. Navy photo by Lt. Ashley E. Nekoui)