10. What strategy helped the Allied forces win the Battle of the Coral Sea?
planning surprise attacks against the Japanese
using a larger fleet than that of Japan
"island hopping" to cut off Japanese supply lines
cracking Japanese codes to learn of their attack plans

Cracking Japanese codes to learn of their attack plans.

Explanation:

The Battle of the Coral Sea (May 1942) was the first air-sea battle of history. The Japanese planned to take control of the Coral Sea and prepared a landing in near Port Moresby in Papua New Guinea. Their communications had been intercepted because the American intelligence had broken the secret codes used by Japan. When the Japanese troops disembarked , they were attacked by American airplanes from the aircraft carriers.

The invasion was frustrated and this why it is considered an American victory.