The Allied land forces were from the American, British and Canadian armies, and were structured as two task forces. The Eastern Task Force (also known as Task Force 545) was led by General Sir Bernard Montgomery and consisted of the British Eighth Army (which included the 1st Canadian Infantry Division). The Western Task Force (Task Force 343) was commanded by Lieutenant General George S. Patton and consisted of the American Seventh Army. The two task force commanders reported to Alexander as commander of the 15th Army Group.