Cryptanalysis of the Enigma immense problem and it gave a great deal of trouble. Work on a high speed machine had been started by Wynn-Williams of the TRE late in 1941 and some nine months later Harold Keen of BTM started work independently. Early in 1942, Bletchley Park were a long way from possessing a high speed machine of any sort. Eventually, after a long period of being unable to decipher U-boat messages, a source of cribs was found. This was the Kurzsignale (short signals), a code which the German navy used to minimize the duration of transmissions, thereby reducing the risk of being
Military history of the Netherlands during World War II Military history of the Netherlands during World War II The Netherlands entered World War II on May 10, 1940, when invading German forces quickly overran them. On December 7, 1941, after the attack on Pearl Harbor, the Netherlands government in exile also declared war on Japan. Operation Market Garden, which started in 1944, liberated the southern and eastern parts of the country, but full liberation did not come until the surrender of Germany on May 5, 1945. When World War II erupted in September 1939, most in the Netherlands believed that the country could remain neutral, as it had in