Featuring some of our best clips from our series Hell Below, we’re taking a look at the strategies and battles that characterized WWII submarine warfare.

0:00 - Intro to 10 Intense Submarine Battles
0:25 - Why Submarine Battle is Extremely Tricky
4:09 - Why Depth Charges Don't Have to Touch a Submarine to Sink It
7:54 - Why Aircraft Patrols Were a Source of Fear for Nazi U-Boats
11:32 - This U.S. Sub Launched an Attack on a Japanese Train
14:33 - The Stealthy U-Boat Attack That Crippled Britain
18:20 - How to Escape a Sunken Submarine Alive
22:05 - A British Sub Fires Its Torpedoes at a Nazi U-Boat
25:36 - A British Submarine in WWII Goes from Hunter to Hunted
30:08 - A Surprisingly Tense Battle Between a U.S. Sub & a Fishing Boat
34:20 - A U.S. Warship Fires an Anti-Sub Weapon on a German U-Boat

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