Palestinian Sunni Islamic militant nationalist organization
Hamas is a Palestinian Sunni-Islamic fundamentalist, militant, and nationalist organization. It has a social service wing, Dawah, and a military wing, the Izz ad-Din al-Qassam Brigades. It won the 2006 Palestinian legislative election and became the de facto governing authority of the Gaza Strip following the 2007 Battle of Gaza. It also holds a majority in the parliament of the Palestinian National Authority.