She patrolled the Atlantic for German shipping and commerce raiders following declaration of World War II hostilities. She patrolled the Mediterranean Sea from May 1940, and was at Alexandria with Force X when France surrendered.
As part of her duties, she sailed across the Atlantic to intercept German shipping and commerce raiders after the outbreak of World War II. From May 1940, she focused on the Mediterranean Sea, where she was based in Alexandria alongside Force X when France capitulated.