Pollock served in the Second World War, becoming first lieutenant of the old destroyer  in October 1939, escorting shipping across the English Channel to supply the British Expeditionary Force in northern France, and protecting convoys in the eastern Atlantic Ocean.
During World War II, Pollock served as a first lieutenant on an older destroyer. He was tasked with escorting shipping across the English Channel to deliver supplies to the British Expeditionary Force in northern France, and safeguarding convoys in the eastern Atlantic Ocean.