https://www.americanthinker.com/blog/2020/05/coral_sea_the_forgotten_battle_that_saved_america.html
Seventy-eight years ago this week, (May 4–8, 1942) the United States Navy, despite being outnumbered and outgunned, repelled a large Japanese invasion fleet in the Battle of the Coral Sea, just east and north of Australia. It was the first naval battle in history in which the opposing fleets never came within sight of each other. All of the fighting was done when aircraft from both opposing fleets attacked the other’s ships and planes.
That distinction (of being first) is often credited to the later, and more famous, Battle of Midway, but it rightly belongs to the brave men who fought, many of whom died, in the Coral Sea.
Because of the courage and sacrifice of undaunted American warriors, two Japanese aircraft carriers were put out of action, with a third, smaller Japanese carrier sunk. However, there was a great cost. The United States lost the aircraft carrier USS Lexington and two other ships, with heavy loss of life. At the time, the Allies regarded the battle as a disappointing defeat, but history was to reveal a brighter outcome.
Had the U.S. lost the battle, it likely might have lost the subsequent Battle of Midway, opening the path to a Japanese invasion of Pearl Harbor and even the U.S. mainland. Instead, the USS Yorktown, significantly damaged in the Coral Sea, managed to return to Pearl Harbor in time to be repaired and fight, and to sink two of the four carriers that the Japanese lost at Midway.