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James N. Mattis
Leadership & Management
James N. Mattis is a retired Marine Corps four-star general and former U.S. secretary of defense whose writing examines military leadership and strategy.
Biography
James Norman Mattis served as United States secretary of defense from 2017 to 2019. He graduated from Central Washington University and was commissioned in the Marine Corps through the Naval Reserve Officers’ Training Corps. During his military career, he commanded forces in the Gulf War, the war in Afghanistan, and the Iraq War, eventually becoming a four-star general.
From 2007 to 2010, Mattis led United States Joint Forces Command while also serving as NATO’s Supreme Allied Commander Transformation. He then commanded United States Central Command from 2010 to 2013. His book Call Sign Chaos, written with Bing West, draws on his military career to explore leadership, the importance of allies, and the relationship between military operations and broader strategy.
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Books by James N. Mattis

Call Sign Chaos
Call Sign Chaos (2019), by Jim Mattis and Bing West, examines lessons from Mattis’s military career through three sections: Direct Leadership, Executive Leadership, and Strategic Leadership. It explores how leadership changes with the scale of command, alongside questions of warfighting, peacemaking, alliances, and strategic decision-making.