Religious aspects Doctrines 1 God (Islam) 1 Good and evil 1 History of doctrines 1 Ibn Taymiyah, Ahmad ibn Abd al-Halim 1 Islam 1 Jihad 1 Optimism 1 Philosophy 1 Radicalism 1 Radicalization 1 Religious militants 1 Social conditions 1 Terrorism 1 Theodicy 1 Violence 1 framework for analysis social movement theories Islamic Doctrines United Kingdom Radicalization networks Conversion Western Europe Rational Choice Spain comparative analysis Jihadism Belgium terrorism religious violence theories of radicalization France Germany Jihadi Terrorism 1