Task: Explanation
Input (English): The Nakajima B6N "Tenzan" (Japanese: 中島 B6N 天山—"Heavenly Mountain", Allied reporting name: "Jill") was the Imperial Japanese Navy's standard carrier-borne torpedo bomber during the final years of World War II and the successor to the B5N "Kate". Due to its protracted development, a shortage of experienced pilots and the United States Navy's achievement of air superiority by the time of its introduction, the B6N was never able to fully demonstrate its combat potential. Question: The Nakajima B6N "Tenzan", was the Imperial Japanese Navy's standard carrier-borne torpedo bomber during the final years of which event, an aircraft carrier is a warship that serves as a seagoing airbase, equipped with a full-length flight deck and facilities for carrying, arming, deploying, and recovering aircraft?  Answer: World War II
Output (English): The Nakajima B6N Tenzan Japanese: 中島 B6N 天山—Heavenly Mountain, Allied reporting name: Jill was the Imperial Japanese Navys standard carrierborne torpedo bomber during the final years of World War II and the successor to the B5N Kate.