On August 6, 2006 Al Jazeera broadcast a video in which Ayman al-Zawahiri claimed that al-Gamaa al-Islamiya (Egyptian Islamic Group Gamaa Islamiya) had joined Al-Qa'ida. The video also included Muhammad Khalil al-Hakaymah, a player in Egyptian Islamist movements since 1979 swearing allegiance to Al-Qa'ida on behalf of the Egyptian group. Despite al-Zawahiri's star power, al-Hakaymah's claims were subsequently disputed by members of al-Gamaa al-Islamiya, which had formally renounced violence in 1997. Al-Hakaymah's bayat to Al Qa'ida corresponded with the publication of his book, The Myth of Delusion, a detailed dissertation designed to demystify the U.S. intelligence community. Arab observers, in and outside of Egypt, have since speculated that Al-Hakaymah will play an increasingly significant role in Al-Qa'ida because of his expertise on the United States security community and disillusionment with Gamaa Islamiya's nonviolent approach. Since releasing Myth, al-Hakaymah has circulated a brief exhortation to individual jihad entitled Toward a New Strategy and a tactical handbook entitled Fighting Alone.