Guano Islands Act in the context of "Navassa Island"

Navassa Island (/nəˈvæsə/; Haitian Creole: Lanavaz; French: Île de la Navasse, sometimes la Navase) is an uninhabited island in the Windward Passage of the Caribbean Sea. Located east of Jamaica, south of Cuba, and 40 nautical miles (74 km; 46 mi) west of Jérémie on the Tiburon Peninsula of Haiti, it is subject to an ongoing territorial dispute between Haiti and the United States, the latter of which administers the island through the U.S. Fish and Wildlife Service.

The U.S. has claimed the island as an appurtenance since 1857, based on the Guano Islands Act of 1856. Haiti's claim over Navassa goes back to the Treaty of Ryswick in 1697 that recognized French, rather than Spanish, control of the western portion of the island of Hispaniola and other specifically named nearby islands. However, there was no mention of Navassa in the treaty detailing terms. Haiti's 1801 constitution claimed several nearby islands by name, among which Navassa was not listed, but also laid claim to "other adjacent islands", which Haiti maintains included Navassa. The U.S. claim to the island, first made in 1857, asserts that Navassa was not included among the unnamed "other adjacent islands" in the 1801 Haitian Constitution. Since the Haitian Constitution of 1874, Haiti has explicitly named "la Navase" as one of the territories it claims. It maintains that it has continuously been claimed as part of Haiti since 1801.