'Cave' was the British and Free Greek seizure of Tílos island in the German-occupied Dodecanese islands group of the Aegean Sea (28 February/1 March 1945).

A similar undertaking against Mílos as well as Piskopi had been attempted in October 1944, but the British had encountered strong German resistance and been forced to withdraw. This was the last Allied amphibious operation undertaken in the Mediterranean theatre during World War II, the garrisons of all other German-held islands being isolated and ignored, except for occasional air and sea bombardments, until the end of the war.

In 'Cave' the British landed 500 Greek troops of Syntagmatárches Christodoulos Tsigantes’s Sacred Regiment on the island, and after a short period of fierce resistance the German garrison surrendered on the following day.