The question asks to identify the country that launched the first pre-emptive air strike during the 1967 Arab-Israeli War.
The pre-emptive air strike was executed by the Israeli Air Force targeting Egyptian airfields in the early morning hours of June 5, 1967. This devastating attack crippled the Egyptian air force and marked the beginning of the war.
Based on historical records, Israel was the nation that initiated the pre-emptive air strike, setting the stage for the conflict.