The Battle of Midway, in June 1942 destroying Japan's four aircraft carriers and soon thereafter its merchant navy and remaining naval air-power cut Japan off from its empire.
June 1942 was the date when the Battle of Midway occurred.
mnli hypothesis: June 1942 was the date when the Battle of Midway occurred. premise: The Battle of Midway, in June 1942 destroying Japan's four aircraft carriers and soon thereafter its merchant navy and remaining naval air-power cut Japan off from its empire.