| Six months after Pearl Harbor, U-boats landed eight German marines on American shores for sabotage missions. |
| What if Germany's U-boats had won the Battle of the Atlantic and starved Britain into submission? |
| During WWII, German U-boats sank more than 5000 merchant vessels and many Allied warships. |
| This approach would be similar to that adopted to fight German U-boats in the Second World War. |
| As bad luck would have it, nine German U-boats stumbled across the manoeuvres and torpedoed the ships, sinking two ships and damaging a third. |
| Just as in the First World War, U-boats nearly brought the UK to its knees. |
