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Here's How Donald Trump Took Shots at NATO in 2018
By Christopher Woody
Brett McGurk, top U.S. envoy in ISIS fight, resigns
By Margaret Brennan
Why Mattis Had to Go - POLITICO Magazine
By Blake Hounshell
Trump, Angry Over Mattis's Rebuke, Removes Him 2 Months Early (Published 2018)
By Helene Cooper & Katie Rogers
US envoy in ISIS fight, Brett McGurk, resigns over US withdrawal from Syria
By Veronica Stracqualursi & Elise Labott
James Mattis to Depart as Defense Chief Over Troop Withdrawals from Syria, Afghanistan
By Nancy Youssef & Rebecca Ballhaus
Mattis resigning as Pentagon chief after clashes with Trump
By Lolita Baldor & Zeke Miller
You Can't Serve Both Trump and America
By Elliot Cohen
James Mattis resigns as defense secretary
By Alex Ward & Jen Kirby
Defense Secretary Mattis' resignation letter is a must-read warning about the future
By Frederick Kempe
Mattis quits, says his views aren't 'aligned' with Trump's
By Zachary Cohen, Barbara Starr & Jeremy Diamond
Defense Secretary Jim Mattis resigns, scolding Trump over his military judgment
By David K. Li, Mosheh M. Gains & Dafna Linzer
US Defence Secretary James Mattis announces resignation
By Anthony Zurcher
All the ways Mattis tried to contain Trump
By Wesley Morgan
Mattis breaks with Trump in resignation letter
By Connor O'Brien & Bryan Bender
Read James Mattis' resignation letter to Trump: 'We must be resolute and unambiguous' toward Russia and China
By Kevin Breuninger
Defense Secretary James Mattis is quitting because he doesn't agree with Trump
By Kevin Breuninger & Amanda Macias
Splitting With Trump Over Syria, American Leading ISIS Fight Steps Down (Published 2018)
By Rukmini Callimachi & Eric P. Schmitt
Jim Mattis, Defense Secretary, Resigns in Rebuke of Trump's Worldview (Published 2018)
By Helene Cooper
Perspective | Trump can launch nuclear weapons whenever he wants, with or without Mattis
By Jon Wolfsthal & Bruce G. Blair
Mattis resigns after clash with Trump over troop withdrawal from Syria and Afghanistan
By Missy Ryan, Paul Sonne & Josh Dawsey
Trump forces Mattis out two months early, names Shanahan acting defense secretary
By Philip Rucker, Josh Dawsey & Dan Lamothe