 By the time they arrived, the British had lost two battleships in the 18 March attack, prompting the Admiralty to finally disband 5th Squadron and send "London" and "Prince of Wales" to join the fleet.Before they departed, they were modified slightly for operations off the Dardanelles, including the installation of a pair of 3-pounder anti-aircraft guns on their quarterdecks and the re-installation of anti-torpedo nets.