Book excerpt: A fascinating look at the insurgencies and counterinsurgencies throughout history with a concentration on the 20th and 21st centuries. This encyclopedia examines insurgencies—and the counterinsurgency efforts they prompt—through history, addressing military actions and the techniques and technologies employed in each conflict, significant insurgency leaders, and the leading theorists, with emphasis on the "small wars" of the 20th century and most recent decades. The clear, concise entries provide a breadth of coverage that ranges from the Maccabean Revolt in 168–143 BCE and the Peasants' Revolt in Germany in the 1500s to the American Revolutionary War and the ongoing insurgency in Syria. Readers will gain a solid understanding of how insurgency warfare and counterinsurgency (COIN) strategy has played a key role in the U.S. conflicts in Afghanistan and Iraq in the early 21st century, and grasp how this important military strategy has evolved during modern times.