Guantánamo Bay (Spanish: Bahía de Guantánamo, [baˈia ðe ɣwãnˈtanamo]) is a bay in Guantánamo Province at the southeastern end of Cuba. It is the largest harbor on the south side of the island and it is surrounded by steep hills which create an enclave that is cut off from its immediate hinterland.
The United States assumed territorial control over the southern portion of Guantánamo Bay under the 1903 Lease. The United States exercises jurisdiction and control over this territory as the home of the Guantanamo Bay Naval Base, while recognizing that Cuba retains ultimate sovereignty.
