On November 25, 1970, Mishima and four members of the Tatenokai, under pretext, visited the commandant of the Ichigaya Camp — the Tokyo headquarters of the Eastern Command of Japan's Self-Defense Forces. Inside, they barricaded the office and tied the commandant to his chair. With a prepared manifesto and banner listing their demands, Mishima stepped onto the balcony to address the soldiers gathered below. His speech was intended to inspire a coup d'état restoring the powers of the emperor. He succeeded only in irritating them, and was mocked and jeered. He finished his planned speech after a few minutes, returned to the commandant's office and committed seppuku.