After a couple of training periods during June and July with 879 squadron she was allocated to Task Force 61 to participate in Operation Carson, which was to be a series of attacks on Japanese shipping and airfields in the Penang and Medan areas of Sumatra. She again embarked 879 squadron on 9 August, and sailed from Trincomalee, on 10 August 1945, along with the escort carriers , "Emperor", , "Khedive", and with strikes planned to be carried out on 14 and 15 August. Task Force 61 was order to hold west of 90 degrees east latitude on 11 August, to wait for further orders. They were ordered to return to Trincomalee, arriving 15 August, where they received the Station General Message, "SUSPEND OFFENSIVE OPERATIONS AGAINST JAPANESE FORCES." "Attacker" was in harbour at Trincomalee, to celebrate V-J Day while waiting on new orders. She had already been allocated to Operation Zipper, the planned invasion of Singapore, which was scheduled for September 1945. With the end of hostilities, they were a reoccupying force instead of an invading force.