The oft-quoted Sun Tzu urged warriors to know their enemy. “Soldiers” in the war on terrorism would thus do well to get into the minds of Islamic terrorists. To that end, the Hudson Institute, a Washington, D.C. think tank, has issued Current Trends in Islamist Ideology, which pulls together the thoughts of various Islamist leaders and groups. For instance, the war in Iraq has melded together elements of Islamist ideology, including anti-Americanism, the excommunication of Muslims perceived to be collaborating with the United States, the view of the Iraq war as a “return home” for Muslim fighters after years in exile, and the transformation of ummah—the brotherhood of Muslim believers—into a political and strategic unit. Other chapters explore the ideologies of South Asian jihadi groups, radical Islamist ideologies in Southeast Asia, the penetration of Islamist ideology in Britain, the beliefs of Al-Jama’ah Al-Islamiya, and more. To read the article, go to SM Online.