In this perspective, this paper focuses on the various skills at work in cracking the Enigma machine. In the period from 1932 to 1939, their political and geographical situation stimulated the Poles to coordinate their technical, mathematical and political capabilities.The threat of invasion by the Germans led the Poles to communicate their Enigma codebreaking achievements to their French and British Allies. When the GC&CS moved to Bletchley Park at the outbreak of the war, it underwent a radical change of scale, enforcing deploying enormous efforts to face the huge quantity of German communications. the deciphering process would have been impossible to complete without the help of machines such as British and US Bombes. The design and manufacture of another machine, Colossus, took place in the final years of the war, in order to decrypt the Lorenz Machine.