(CNN) -- Hamas is an Islamic fundamentalist organization whose military wing has admitted responsibility for terrorist attacks against Israeli civilians and soldiers. Hamas supporters wave flags and shout slogans in Gaza on December 14 to mark the group's 21st anniversary. The group came into being in December 1987, growing out of the Muslim Brotherhood, the religious and political organization founded in Egypt. Its goal is an Islamic fundamentalist Palestinian state. It is considered a terrorist organizations by Israel and the United States. Hamas is an acronym for "Harakat Al-Muqawama Al-Islamia" or Islamic Resistance Movement, in English. The group was primarily a religious and charitable organization between the 1960s and 1980s. It has wings devoted to religious, military, political and security activities.Military wing of Hamas has admitted terrorist attacks on Israeli civilians, soldiersHamas is considered terrorist organizations by Israel and the United StatesIt has wings devoted to religious, military, political and security activities
1988 - The covenant of the _ is published. From December 24, 2008 - The rocket attacks from _ increase and so do the retaliation air strikes from Israel.