On 26 March 1915, following the failure of attempts to force the Dardanelles had failed, these eight "Beagle"s were ordered to rejoin the 5th Destroyer Flotilla Mudros for operations in support of the Dardanelles Campaign. During the initial landings at ANZAC Cove and at Cape Helles, "Pincher" joined several other destroyers in minesweeping operations in the Dardanelles straits to allow Allied battleships to bombard Turkish positions. On the night of 12/13 May, the pre-dreadnought battleships and were anchored in Morto Bay, supporting French troops. To protect the two battleships, "Pincher" patrolled the centre of the straits, and patrolled the north side of the straits, with and patrolling the southern side. Despite these patrols, the Turkish destroyer managed to sneak past "Beagle" and "Bulldog" on the northern side of the straits and torpedoed and sunk "Goliath" before successfully escaping. From March 1916, "Pincher" operated in the Aegean, patrolling the Dodecanese, Sporades and Cyclades and the Turkish coast.