The Home Fleet was a fleet of the Royal Navy that operated from the United Kingdom's territorial waters from 1902 with intervals until 1967. Before the First World War, it consisted of the four Port Guard ships. In 1905 it was disestablished, and from 1905 to 1907 remaining ships at a lesser state of readiness were split into the reserve divisions . During the First World War, it comprised some of the older ships of the Royal Navy. During the Second World War, it was the Royal Navy's main battle force in European waters.