Why One Captain Dropped FAKE Depth Charges—And Forced 12 U-Boats to Surface #ww2history #battleoftheatlantic #navalwarfare In December 1941, Commander Frederic John Walker committed a court-martial offense that would change naval warfare forever. With Britain losing the Battle of the Atlantic and U-boats sinking ships faster than they could be replaced, Walker did the unthinkable—he ignored Royal Navy doctrine and developed forbidden depth charge tactics that increased U-boat kill rates by 900%.