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Q: How did the US break the Japanese naval code?
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What knowledge did the US have that influenced the outcome of the Battle of the Midway?

The Japaneses naval code was broken by the allies, and imminent attack plans by the Japanese was decoded by the allies.


What is the decisive US naval victory over the Japanese?

midway


Who convinced the Japanese leaders to attack midway island?

US Naval code-breakers. The US Naval intelligence (code-breakers section) had begun to crack the super-encrypted Japanese Naval Code Kaigun Ango Sho D (known by US code-breakers as AN-1 and later called JN-25). Simplistically, this was a complex 'code within a code'. The Japanese coded-messages were transmitted by radio and then heard by US military (and Allied) listening posts throughout the Pacific. These messages were sent to a central collection office within US Naval intelligence to be decoded if possible. The more messages collected, the better the chance of finding patterns that enabled decoding of small bits of messages. Because of the US Doolittle Raid of 18 April 1942, Japanese radio traffic using the JN-25 codes dramatically increased. This assisted the US code-breakers to determine that some sort of Japanese offensive was planned for the eastern part of New Guinea & the Solomon Islands. This information was used by Admiral Nimitz to position two US aircraft carriers in the area. The US intelligence information was verified by the subsequent Battle of Coral Sea from 4-8 May 1942. This validated the earlier decoding and helped the Code breakers project that the next Japanese strike would be aimed at Midway based on the latest intercepts & partial decoding. The Japanese final decision to invade & seize Midway happened on 5 May 1942. Japanese instructions went out by radio in code thereafter. Starting 14 May 1942, the US code-breakers were getting the first hints of the Japanese Midway operation. By the next week US Admiral Nimitz was fairly certain that the Japanese would attack Midway the first week in June.


Naval officer who persuaded the Japanese to trade with the us?

oliver perry


Who is Naval officer persuaded the Japanese to trade with the us?

Adm. Perry


What was the number of Japanese naval officers who received training at the US Naval Academy prior to their service in the Russo Japanese War?

Based on an act of Congress, foreign naval officers were allowed to enroll and or be trained at the US Naval Academy. Six Japanese naval officers, cited for distinguished service by Japan were trained at the Academy. Two of them actually enrolled and were graduated. They were Admiral Uriu, and Lieutenant Commanders Niri and Tamura.


Who persuaded the Japanese to trade with the us?

Oliver Perry was an 1853 naval officer who, persuaded the Japanese to trade with the U.S.


In what year did the Japanese planes bomb the US naval base at Pearl Harbor?

1941


How the usentered into World War 2?

The US naval base at Pearl Harbour was attacked by the Japanese. The USA declared war on the Japanese.


When did the Japanese planes bomb the US naval base at pearl harbor?

December 7, 1941


What was pearl harbor like before the bombings by the Japanese?

The same as US Naval bases in California.


What was Date when us broke japan military code?

When did U.S. break Japanese code. I heard it was before the attack on Pearl Harbor. If this is so why was the attack a surprise.