Fort Gilkicker is a historic Palmerston fort built at the eastern end of Stokes Bay, Gosport, Hampshire to dominate the key anchorage of Spithead. It was erected between 1863 and 1871 as a semi-circular arc with 22 casemates, to be armed with 5 12" guns, 17 10" guns and 5 9" guns. The actual installed armament rather differed from this. In 1902 the RML guns were replaced by 2 9.2" and 2 6" BL guns, and before the First World War the walls were further strengthened with substantial earthwork embankments.