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, however, and was mocked and jeered. He finished his planned speech after a few minutes, returned to the commandant's office and committed seppuku.I was surprised to find this video with Mishima speaking English. I had thought his English rudimentary, but it's actually quite good.
Some classic photos.