• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

'Ultra' was made possible because of help from Poland.

Extracts from this document...


'Ultra' was made possible because of help from Poland. The Poles handed a replica of the Enigma to Bletchley Park in August 1939. Without it breaking the code would have been almost impossible. In January 1940 Alan Turing became convinced that the Poles had misinterpreted the workings of the Enigma and, after meeting them, realized that he was correct. He then managed to crack the 'Green' code. In February 1940 John Herivel thought of the idea of putting himself in an operators mind to reduce the setting possibilities. This became increasingly more useful to cracking the Enigma. When Germany invaded Denmark and Norway in 1940 they used a new code; 'Yellow'. This was cracked in five days and as a result Station X was able to supply large amounts of information to the armed forces. But unfortunately the armed forces did not trust the source's reliability because Bletchley Park was top secret and couldn't be spoken about, as well as the armed forces not trusting information coming from civilians. ...read more.


Unfortunately British Forces were forced to retreat, but for Station X it was a victory and showed what it was capable of. In May 1941 the German battle ship Bismarck had attempted to attack British shipping in the North Atlantic. The Royal Navy sent forces to intercept it, but when it came in contact with HMS Hood, it was slightly damaged. Bletchley Park warned the admiralty that the Bismarck must be heading for Brest because its messages were now being sent t France. The Admiralty was not convinced until Station X cracked the code and proved that they was correct, which led to 'Force H' from Gibraltar to intercept and sink the Bismarck. In 1941, the 'Dolphin' Naval code had been broken and the amount of British convoys sunk dropped from 282,000 tonnes of shipping to 62,000, about 15 ships. In January 1942, Bletchley Park was unable to read messages sent by the German army in North Afrika. This resulted in British forces being forced back in North Afrika, until Station X finally cracked the German code. ...read more.


This gave the Allies an advantage at D Day (6 June). Although many messages sent by Germans in the weeks after the landings were not read, Station X was able to give warnings of counter attacks on 10 and 12 June. However, information from Station X was ignored when 300,000 Germans were almost encircled in Normandy. This allowed the Germans to escape. After D Day the influence of Ultra became less important. Montgomery ignored Station X information when he decided to launch Operation Market Garden, the attempt to capture the bridge at Arnhem. It was a disaster. Information was also provided about the Battle of Bulge, the counter-attack by the Germans in December 1945, though this was not the main reason for the defeat of German attack. Ultra was a valuable source of information for the last 4 years of the war. It became more detailed and consistent and its information enabled Allied forces to survive attacks and avoid defeat. But battles were by won by Allied commanders. Bletchley Park could only provide information to plan tactics and strategy. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level ICT in Business section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level ICT in Business essays

  1. Customer service: an investigation into Thorpe Park

    The park as a variety of rides especially ones that are suitable for their target market so ensure that customers are satisfied. Different cultures: it often important to recognise types of customer by their cultural background in order to provide effective customer service.

  2. Are entrepreneurs made or born?

    Entrepreneur characteristics (personal attributes) are ingrained aspects of one's character distinguishing them from other people. Entrepreneurs tend to be independent, self-confident and resourceful, they believe in what they are doing and they can convey this confidence to others. They relish challenges, struggle to overcome obstacles and they are committed and determined in all the tasks they undertake.

  1. Bletchley Park and the Enigma Coding System

    which was an order to perform actions instantaneously. While Station X was being overloaded with supplies, it still had to keep its secrecy. This meant that contact between Huts was by tubes, which was designed so that threats from German spies were reduced. "Ultra" was added to these messages, which meant no action could be taken unless this information was proven from another source.

  2. Gossip: Mere words or made up reality?

    In actual fact she does feel a slight attraction, but she is remaining faithful, as she hasn't actually physical expressed this to anyone, until now. She lets on to who she believes to be a trustworthy friend, from group

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work