After returning to active service, "Liverpool" became subordinate to the 18th Cruiser Squadron at Scapa Flow and deployed in support of the Arctic convoys. The conditions that Allied ships endured during the convoys proved extreme, with freezing weather, snowstorms, and frequent attacks by the Luftwaffe and Germany Navy. "Liverpool" arrived in the Arctic as a replacement for the damaged cruiser . She joined Convoy QP 10, comprising 16 merchant vessels and five destroyers, on 12 April as an escort on its journey from the Russian Kola Peninsula to Iceland. The convoy came under repeated attack from U-boats and aircraft for three days. Four vessels were sunk (two of which sank on 11 April) and one was damaged; QP 10 arrived at Reykjavík on the 21st.