WW2 Documentary - Submarines - History Channel

Donate https://gofund.me/6025784f In World War 2, as they did in World War 1, submarines were widely used by both sides as the ultimate weapon of naval blockade, sinking large numbers of both merchant ships and warships, resulting in either paralyzing the enemy's military industry and war effort by causing severe shortages of war materials and products. Top Documentary, Best Documentary, Top Documentaries, Best Documentaries, Documentaries 2018, war documentary, war documentaries