Throughout WWII, Allied use of the Bombe to decrypt German intelligence pertaining to U-boat locations allowed Allied forces to find and sink German submarines, securing the Allied supply line across the Atlantic Ocean. Historians estimate that these successful decryption efforts likely shortened the war by several months.
The Bombe represents the advancement of decryption technology as it was one of the first major cases of using machines to decrypt messages. Although the Polish Bomba had technically come before it, the British Bombe’s impact was significantly higher in terms of the advancement of decryption technology as seen in its use in WWII and the Battle of the Atlantic.