Parts of the Muslim Brotherhood have a highly ambiguous relationship with violent extremism. Both as an ideology and as a network it has been a rite of passage for some individuals and groups who have gone on to engage in violence and terrorism. It has stated its opposition to al-Qaida (AQ) but it has never credibly denounced the use made by terrorist organisations of the work of Sayyid Qutb, one of the Brotherhood's most prominent ideologues. Individuals closely associated with the Muslim Brotherhood in the UK have supported suicide bombing and other attacks in Israel by Hamas, an organisation whose military wing has been proscribed in the UK since 2001 as a terrorist organisation, and which describes itself as the Palestinian chapter of the Muslim Brotherhood.