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The nations involved in the Six-Day War were Israel, Egypt, Syria, Jordan, and Iraq. Other Arab nations played minor roles in the short conflict.
Israel, Egypt, Jordan, and Syria were the only nations involved in the Six Day War. Any other nation was not involved in the Six Day War.
Statehood (modern times) . . . 1948
Six Day War . . . . . 1967
The war only lasted for Six Days (June 5-10, 1967)
Jordan allied with Egypt and Syria in the Six Day War.