Question

how did the battle of the coral sea impact japan’s war strategy

Answer 1

It was the only one-on-one carrier battle, but even though it was a draw, the Allies stopped the Japanese advance.

Answer 2

It halted Japanese expansion to the East.

Context:

In the Battle of the Coral Sea (May, 1942), the American fleet and warplanes defeated a Japanese armada.  Australian forces also participated in the battle, but the United States led the effort.  It was the first air-sea battle in history, with aircraft carriers and planes from the two sides engaging one another.  Both sides suffered damages, but the overall victory was won by the American side.  It was the first time the Japanese advance had been checked by the Allies.