Able Seaman Colin Grazier, GC was posthumously awarded what, for "bravery and steadfast devotion to duty", he displayed on 30 October 1942 in action in the eastern Mediterranean when capturing codebooks vital for the breaking of the German naval "Shark" Enigma cipher from the sinking, the Enigma machines were a series of electro-mechanical rotor cipher machines developed and used in the early- to mid-20th century to protect commercial, diplomatic and military communication?
Colin Grazier Able Seaman Colin Grazier, GC was posthumously awarded the George Cross for the "outstanding bravery and steadfast devotion to duty in the face of danger" which he displayed on 30 October 1942 in action in the eastern Mediterranean when capturing codebooks vital for the breaking of the German naval "Shark" Enigma cipher from the sinking  .
Operation Compass Operation Compass was the first large Allied military operation of the Western Desert Campaign (1940–1943) during the Second World War. British and other Commonwealth forces attacked Italian forces in western Egypt and Cyrenaica, the eastern province of Libya, from December 1940 to February 1941, with great success. The Western Desert Force (Lieutenant-General Richard O'Connor) with about 30,000 men, advanced from Mersa Matruh in Egypt on a five-day raid against the Italian positions of the 10th Army (Marshal Rodolfo Graziani), which had about 150,000 men in fortified posts around Sidi Barrani and in Cyrenaica.