This book begins with an overview of the terrorist group, ISIS, and provides insight into ISIS from its beginnings to the present, through coverage of its people, organizations, and operations. A carefully curated selection of primary sources that come from a variety of sources including national-level strategy documents, presidential addresses, and ISIS itself is also included.

List of entries -- List of primary documents -- Preface -- Introductory essays. Overview of the War with ISIS (1999-2018) -- Causes of the War with ISIS -- Consequences of the War with ISIS -- A-Z entries -- Primary source documents -- Chronology -- Recommended bibliography -- List of contributors -- Index.