During the war, the city of Murmansk became an important port which was supplied goods and weapons from allied countries - Britain and the United States. Here based Northern Fleet. Sailors of transport fleet, warships and aircraft were doing everything possible to convoys - a special form of transport ships and escort ships - to reach the port of destination. In the struggle for delivery to the Soviet Union of essential goods the vast Norwegian and Barents seas great battle was unfolded. Her protagonists were sailors and airmen of Soviet Northern Fleet and the allies. Delivery of goods from the U.S. and the UK took place in three main ways. The shortest and most dangerous of them was way over the north direction - from the ports of Iceland and Scotland to Arkhangelsk and Murmansk. The first Arctic convoy, received the name of "Dervish" came to Arkhangelsk August 31, 1941 without losses.