Doctrines 570 Islam 553 Customs and practices 105 Religious life 88 Faith (Islam) 83 God (Islam) 39 Military doctrine 36 History 35 Sufism 31 Religious aspects 30 Just war doctrine 23 Military policy 23 Islamic law 22 Conduct of life 19 Islam and state 19 Pillars of Islam 18 War 15 Islamic sects 14 Koran 14 Muslims 14 Islamic ethics 13 Shi'ah 13 Early works to 1800 12 Foreign relations 11 Hadith 11 Military art and science 11 Moral and ethical aspects 11 Air power 10 Interpretation and construction 10 Armed Forces 9