{"id":4912,"date":"2014-01-14T17:44:41","date_gmt":"2014-01-14T23:44:41","guid":{"rendered":"https:\/\/secondbysecondworldwar.com\/?p=4912"},"modified":"2014-01-14T17:44:41","modified_gmt":"2014-01-14T23:44:41","slug":"this-week-in-the-war-12-18-january-1942-u-boats-begin-operation-drum-roll","status":"publish","type":"post","link":"https:\/\/secondbysecondworldwar.com\/?p=4912","title":{"rendered":"This week in the War, 12&#8211;18 January 1942: U-boats begin Operation Drum Roll"},"content":{"rendered":"<p><div id=\"attachment_4910\" style=\"width: 460px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/secondbysecondworldwar.com\/?attachment_id=4910\" rel=\"attachment wp-att-4910\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4910\" class=\"size-full wp-image-4910\" alt=\"Type IX U-boat (U-848) under attack in the South Atlantic [Public domain, wiki]\" src=\"https:\/\/secondbysecondworldwar.com\/wp-content\/uploads\/2014\/01\/Wuboatix.jpg\" width=\"450\" height=\"363\" srcset=\"https:\/\/secondbysecondworldwar.com\/wp-content\/uploads\/2014\/01\/Wuboatix.jpg 450w, https:\/\/secondbysecondworldwar.com\/wp-content\/uploads\/2014\/01\/Wuboatix-150x121.jpg 150w, https:\/\/secondbysecondworldwar.com\/wp-content\/uploads\/2014\/01\/Wuboatix-300x242.jpg 300w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><p id=\"caption-attachment-4910\" class=\"wp-caption-text\">Type IX U-boat (U-848) under attack in the South Atlantic [Public domain, wiki]<\/p><\/div>This week in the war, on 12 January 1942, the U-123 sank the British steamer <em>Cyclops<\/em> near Cape Cod. The sinking marked the opening of Doenitz&#8217;s U-boat offensive in the western Atlantic&#8212;his so-called Operation &#8216;Drum Roll&#8217; (<em>Paukenschlag<\/em>).<\/p>\n<p>Before the end of January, German U-boats had sunk 40 merchant ships in the western Atlantic, from Newfoundland through the Caribbean to the Guianas in South America.<\/p>\n<p>Much of the success was due to the deployment of the long range Type IX U-boats (as opposed to the older VIIs, which had shorter range).<\/p>\n<p>For the U-boats, it was the start of the <em>second<\/em> &#8216;Happy Time&#8217; of the <a title=\"Battle of the Atlantic\" href=\"https:\/\/secondbysecondworldwar.com\/?p=4627\">Battle of the Atlantic<\/a>. The time became happier still in February, when the U-boats added an additional rotor to their Enigma cipher machines. Britain&#8217;s Bletchley Park code breakers could no longer read the German messages.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This week in the war, on 12 January 1942, the U-123 sank the British steamer Cyclops near Cape Cod. The sinking marked the opening of Doenitz&#8217;s U-boat offensive in the western Atlantic&#8212;his so-called Operation &#8216;Drum Roll&#8217; (Paukenschlag). Before the end &hellip; <a href=\"https:\/\/secondbysecondworldwar.com\/?p=4912\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[401,630,400,629,632,633,631,396],"class_list":["post-4912","post","type-post","status-publish","format-standard","hentry","category-world-war-ii","tag-battle-of-the-atlantic","tag-bletchley-park","tag-doenitz","tag-enigma","tag-operation-drum-roll","tag-paukenschlag","tag-type-ix","tag-u-boat"],"_links":{"self":[{"href":"https:\/\/secondbysecondworldwar.com\/index.php?rest_route=\/wp\/v2\/posts\/4912","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/secondbysecondworldwar.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/secondbysecondworldwar.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/secondbysecondworldwar.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/secondbysecondworldwar.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4912"}],"version-history":[{"count":3,"href":"https:\/\/secondbysecondworldwar.com\/index.php?rest_route=\/wp\/v2\/posts\/4912\/revisions"}],"predecessor-version":[{"id":4915,"href":"https:\/\/secondbysecondworldwar.com\/index.php?rest_route=\/wp\/v2\/posts\/4912\/revisions\/4915"}],"wp:attachment":[{"href":"https:\/\/secondbysecondworldwar.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4912"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/secondbysecondworldwar.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4912"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/secondbysecondworldwar.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4912"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}