Home2023 Treaties and Agreements ...Spain (23-508.1) – Agreement on the Stationing of Two Additional U.S. Navy Ships at Rota Naval Base hide Spain (23-508.1) – Agreement on the Stationing of Two Additional U.S. Navy Ships at Rota Naval Base TIAS Office of Treaty Affairs May 8, 2023 Defense: Bases Signed at Madrid May 8, 2023; entered into force May 8, 2023. Download Agreement [2 MB] Tags Defense Spain Treaties