Islamic extremism

The September 11 attacks, colloquially known as 9/11, were a coordinated series of suicide attacks perpetrated by the Islamist terrorist organization al-Qaeda against the United States in 2001. Nineteen terrorists hijacked four airliners, then flew one into each of the Twin Towers at the World Trade Center in New York City. The third plane crashed into the Pentagon, the headquarters of the United States Department of Defense, in Arlington County, Virginia. The fourth plane crashed in a rural Pennsylvania field during a passenger revolt. In response to the attacks, the United States launched the global war on terror, seeking to eliminate hostile groups deemed terrorist organizations, and the governments purported to support them. This foreign policy agenda was conducted over the next two decades.

Horn of Africa-based Islamist movement affiliated with al-Qaeda

Islamofascism is a portmanteau of the words fascism and Islamism or Islamic fundamentalism, which advocate authoritarianism and violent extremism to establish an Islamic state, in addition to promoting offensive Jihad. For example, Qutbism has been characterized as an Islamofascist and Islamic terrorist ideology.

Islamic religious police in Iran

extreme or radical form of Islam

Takfir () is an Arabic and Islamic term which denotes excommunication from Islam of one Muslim by another, i.e. accusing another Muslim of being an apostate. The word is found neither in the Quran nor in the ḥadīth literature; instead, kufr ("unbelief") and kāfir ("unbeliever") and other terms employing the same triliteral root K-F-R appear.

enforcement agency

The Ikhwān (, ), commonly known as Ikhwān man Aṭāʿa Allāh (, 'Brethren of those who obey God'), was a Wahhabi religious militia made up of traditionally nomadic tribesmen which formed a significant military force of the ruler Ibn Saud and played an important role during the unification of Saudi Arabia whereby establishing him as ruler of most of the Arabian Peninsula in Kingdom of Saudi Arabia.

Iranian protesters in hijab status

Takfiri is an Arabic and Islamic term denoting a Muslim who excommunicates one of their coreligionists—i.e., who accuses another Muslim of being an apostate, or , 'one who turns back'.

Pakistani penal code on insulting religion

antisemitic Islamic chant