Between January 1931 and January 1934, "Barham" underwent a major refit. While the other four ships of the "Queen Elizabeth class" were given a second, more extensive refit in the mid-to-late 1930s (which for "Warspite", "Valiant" and amounted to a complete reconstruction with new machinery and superstructures), changes to "Barham" were relatively minor. Now under the command of Captain Richard Scott, "Barham" was assigned to the Home Fleet as the flagship of the 2nd Battle Squadron, and deployed to the West Indies in January–February 1935 for training. The ship participated in the Silver Jubilee Fleet Review for George V on 16 July at Spithead and was then transferred to the Mediterranean Fleet at the end of August. At that time, Captain Norman Wodehouse relieved Scott. She was briefly deployed to Haifa in May 1936 at the beginning of the Arab revolt in Palestine. Shortly afterwards, she was deployed to Gibraltar for several months after the beginning of the Spanish Civil War in July.