Battle of the Atlantic Battle of the Atlantic The Battle of the Atlantic was the longest continuous military campaign in World War II, running from 1939 to the defeat of Germany in 1945, and was a major part of the Naval history of World War II. At its core was the Allied naval blockade of Germany, announced the day after the declaration of war, and Germany's subsequent counter-blockade. It was at its height from mid-1940 through to the end of 1943. The Battle of the Atlantic pitted U-boats and other warships of the "Kriegsmarine" (Navy) and aircraft of the "Luftwaffe" (Air Force) against the
Battle of the Niemen River 23-25 Sept., the battle was evenly balanced. However, the flanking attack by Gen. Osinski's Suwalki Group, the 1st Legionary Division, and the 1st Lithuanian-Byelorussian Division from Sejny, took Druskienniki on 23 Sept. and cut the Soviet III Army's supply line at the Grodno-Wilno railway. The Polish cavalry reached Radun and then Lida. On 26 Sept., Gen. Krajowski's cavalry took Pinsk, cutting the Soviet IV Army's supply line. Tukhachevsky ordered a retreat. Battle of the Niemen River The Battle of the Niemen River was the second-greatest battle of the Polish–Soviet War. It took place near the middle Neman River between the