Which victory crushed japan's plans to conquer the pacific?
a. battle of coral sea
b. operation overlord
c. battle of midway
d. battle of iwo jima

The Battle of Midway crushed Japan's plans to conquer the Pacific. The correct option among all the options given in the question is option "c". This was a Battle fought between 4th June and 6th June of the year 1942. Although the Japanese had a bigger fleet, but their flawed planning led to a Allied victory and this crushed the backbone of Japanese naval forces.