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Hassan Nasrallah is the Secretary-General of Hezbollah, a Lebanese Shi'a Islamist militant group and political party. He has been in this position since 1992, and is widely regarded as the most powerful figure in Lebanon. Nasrallah has been a vocal opponent of Israel, and has led Hezbollah in a number of conflicts with the country. He is also a controversial figure, and has been accused of terrorism by some sources.