In June 1942 at the Battle of Midway, the US's successful decryption of Japanese plans proved crucial. This intelligence breakthrough allowed the US to anticipate and strategically counter Japanese moves, leading to a surprise attack and a significant victory.



  1. The decryption of Japanese codes gave the US forces a significant strategic advantage, allowing them to prepare and plan their defence and counterattacks effectively.
  2. The intelligence gathered allowed the US to anticipate Japanese moves, providing a tactical edge in the ensuing battle.
  3. The surprise attack on the Japanese fleet was a turning point in the battle made possible due to the accurate intelligence received.
  4. The Battle of Midway highlighted intelligence's pivotal role in warfare, demonstrating the potential of well-analysed information to change the outcome of conflicts.