"~450 aircraft" . "United Kingdom" . "1942-02-12Z"^^ . . . . . . "41 aircraft" . . "Channel Dash"@en . "252Bf 109andFw 190fighters" . . "German victory" . "Germany" . . "30Bf 110Heavy fighters" . "Unternehmen Donnerkeil (Operation or Undertaking Thunderbolt) was the codename for a German military operation of the Second World War. Donnerkeil was designed as an air superiority operation to support the Kriegsmarine\u200D\u200D\u200A'\u200B\u200Ds (German Navy) Operation Cerberus, also known as the \"Channel Dash\".In 1941 Kriegsmarine surface vessels had carried out commerce raiding sorties in support of the German U-Boats in the Battle of the Atlantic."@en . "32Dornier Do 217s" . . .