The Battle of the Atlantic: U-boats and how to sink them

Free trial of The Great Courses Plus: http://ow.ly/1Svu30hIvsf The Battle of the Atlantic: U-boats and condor combers stalk the convoys supplying Britain, while code-breakers and radio listeners track them down. Support me on Patreon:   / lindybeige   One of my longer rambles, this one. Disclaimer from The Great Courses Plus: "The Great Courses Plus is currently available to watch through a web browser to almost anyone in the world and optimized for the US, UK and Australian market. The Great Courses Plus is currently working to both optimize the product globally and accept credit card payments globally." Picture credits: Medal picture: By Sergeant Tom Robinson RLC - Ministry of Defence http://www.defenceimagery.mod.uk/, select "downloadable images" and enter 45155226 in the search box), OGL, https://commons.wikimedia.org/w/index... Donitz picture: By Bundesarchiv, Bild 146-1976-127-06A / CC-BY-SA 3.0, CC BY-SA 3.0 de, https://commons.wikimedia.org/w/index... B24 Liberator picture: By F/O G. Woodbine, Royal Air Force official photographer [Public domain], via Wikimedia Commons Bombe machine: By Antoine Taveneaux [CC BY-SA 3.0 (https://creativecommons.org/licenses/...)], from Wikimedia Commons Interior of bombe machine: By Magnus Manske (Created by Magnus Manske.) [GFDL (http://www.gnu.org/copyleft/fdl.html), CC-BY-SA-3.0 (http://creativecommons.org/licenses/b...) or CC BY-SA 2.5 (https://creativecommons.org/licenses/...)], via Wikimedia Commons ASDIC: By ÄDA - DÄP [CC BY-SA 3.0 (https://creativecommons.org/licenses/...)], from Wikimedia Commons Condor FW 200: By Anders Beer Wilse (1865-1949) - Galleri Nor Tilvekstnummer: NF.WF 10590* B Internnr: NBR9204:27482, Public Domain, https://commons.wikimedia.org/w/index... Admiral King: By United States Navy - http://www.history.navy.mil/photos/pe..., Public Domain, https://commons.wikimedia.org/w/index... Buy the music - the music played at the end of my videos is now available here: https://lindybeige.bandcamp.com/track... More weapons and armour videos here:    • Weapons and armour   Lindybeige: a channel of archaeology, ancient and medieval warfare, rants, swing dance, travelogues, evolution, and whatever else occurs to me to make. ▼ Follow me... Twitter:   / lindybeige   I may have some drivel to contribute to the Twittersphere, plus you get notice of uploads. Facebook:  / lindybeige   (it's a 'page' and now seems to be working). Google+: "google.com/+lindybeige" website: http://www.LloydianAspects.co.uk    / user  "Lindybeige"