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Read James Mattis’ full resignation letter
By Daniel R Bush
Brett McGurk, special envoy for coalition to defeat ISIS, resigns in protest of Syria decision
By Josh Lederman & Abigail Williams
Here's How Donald Trump Took Shots at NATO in 2018
By Christopher Woody
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Perspective | Trump can launch nuclear weapons whenever he wants, with or without Mattis
By Jon Wolfsthal & Bruce G. Blair
Pre-Christmas Trump: Rebuked, rampaging
By Jim VandeHei, Mike Allen & Jonathan Swan
Why Mattis Had to Go - POLITICO Magazine
By Blake Hounshell
Brett McGurk, top U.S. envoy in ISIS fight, resigns
By Margaret Brennan
Mattis resigns, says views aren’t in line with Trump’s
By Rebecca Kheel
US envoy in ISIS fight, Brett McGurk, resigns over US withdrawal from Syria
By Veronica Stracqualursi & Elise Labott
Mattis and the grown-ups in the room: a myth
By Matthew Yglesias
James Mattis to Depart as Defense Chief Over Troop Withdrawals from Syria, Afghanistan
By Nancy Youssef & Rebecca Ballhaus
Defense Secretary James Mattis is quitting because he doesn't agree with Trump
By Kevin Breuninger & Amanda Macias
Trump unleashed: Mattis exit paves way for global chaos
By Stephen Collinson
Mattis quits, says his views aren't 'aligned' with Trump's
By Zachary Cohen, Jeremy Diamond & Barbara Starr
Jim Mattis' resignation letter is an absolutely stunning rejection of Trumpism
By Christopher Michael Cillizza
Defense Secretary Jim Mattis resigns, scolding Trump over his military judgment
By David K. Li, Frank Thorp & Mosheh M. Gains
US Defence Secretary James Mattis announces resignation
By Anthony Zurcher
Read James Mattis' resignation letter to Trump: 'We must be resolute and unambiguous' toward Russia and China
By Kevin Breuninger
Jim Mattis, Defense Secretary, Resigns in Rebuke of Trump's Worldview (Published 2018)
By Helene Cooper
Mattis resigns after clash with Trump over troop withdrawal from Syria and Afghanistan
By Missy Ryan, Paul Sonne & Josh Dawsey
James Mattis resigns as defense secretary
By Alex Ward & Jen Kirby