The threat to Britain's supply lines during the second world war is a story of U-Boat Wolf Packs, preying on the merchant shipping as they brought vital goods to Britain across the Atlantic. But in other seas and oceans there was another threat, much akin to latter-day day pirates, at sea for months at a time in converted cargo ships. With their guns hidden, masquerading as other merchantmen they would sail remote sea lanes sinking or capturing lone shipping. Only nine German merchant raiders put to sea, yet they sank 130 Allied or neutral ships… The origins of these raiders goes back to the First World War... Dur: 22mins File: .mp3