Skip to Main ContentThis copy is for your personal, non-commercial use only. Distribution and use of this material are governed byour Subscriber Agreement and by copyright law. For non-personal use or to order multiple copies, please contactDow Jones Reprints at 1-800-843-0008 or visit www.djreprints.com.https://www.wsj.com/articles/jim-mattis-duty-democracy-and-the-threat-of-tribalism-11566984601 By Updated Aug. 28, 2019 8:43 am ETIn late November 2016, I was enjoying Thanksgiving break in my hometown on the Columbia River in Washington state when I received an unexpected call from Vice...…Skip to Main ContentThis copy is for your personal, non-commercial use only. Distribution and use of this material are governed byour Subscriber Agreement and by copyright law. For non-personal use or to order multiple copies, please contactDow Jones Reprints at 1-800-843-0008 or visit www.djreprints.com.https://www.wsj.com/articles/jim-mattis-duty-democracy-and-the-threat-of-tribalism-11566984601 By Updated Aug. 28, 2019 8:43 am ETIn late November 2016, I was enjoying Thanksgiving break in my hometown on the Columbia River in Washington state when I received an unexpected call from Vice...WW…

The world is not getting safer, for the United States or for U.S. interests. Even before the coronavirus pandemic, the 2017 National Defense Strategy described an international environment of increased global disorder, long-term strategic competition, rapid dispersion of technologies, and eroding U.S. military advantages. Protecting the United States requires a strategy of defense in depth—that is, of identifying and dealing with global problems where they occur rather than waiting for threats to reach American shores.To achieve defense in depth, simply strengthening the U.S. military is...…The world is not getting safer, for the United States or for U.S. interests. Even before the coronavirus pandemic, the 2017 National Defense Strategy described an international environment of increased global disorder, long-term strategic competition, rapid dispersion of technologies, and eroding U.S. military advantages. Protecting the United States requires a strategy of defense in depth—that is, of identifying and dealing with global problems where they occur rather than waiting for threats to reach American shores.To achieve defense in depth, simply strengthening the U.S. military is...WW…