• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia

Trendingnow

1

Jeff Bezos wants the bottom half of earners to pay zero income tax—he says nurses making just $75K should save $12K a year

2

Indeed chief economist says we’re entering an era of ‘great mismatch’ thanks to a generational imbalance of workers

3

Microsoft reports are exposing AI's real cost problem: Using the tech is more expensive than paying human employees

1

Jeff Bezos wants the bottom half of earners to pay zero income tax—he says nurses making just $75K should save $12K a year

2

Indeed chief economist says we’re entering an era of ‘great mismatch’ thanks to a generational imbalance of workers

3

Microsoft reports are exposing AI's real cost problem: Using the tech is more expensive than paying human employees
Leadership

Defense Secretary Jim Mattis Sends Letter to President Trump, Resigning His Cabinet Post

By
Emily Gillespie
Emily Gillespie
Down Arrow Button Icon
By
Emily Gillespie
Emily Gillespie
Down Arrow Button Icon
December 20, 2018, 6:20 PM ET

Defense Secretary Jim Mattis sent a letter to President Trump on Thursday announcing his resignation, effective the end of February. The news comes one day after Trump’s abrupt decision to pull U.S. troops from Syria—claiming to have defeated ISIS in the country—a move that went against what his senior advisors, including Mattis.

President Donald Trump called Mattis’ departure a retirement in a tweet and praised Mattis for his service. Senior advisor Stephen Miller later told CNN’s Wolf Blitzer on air that Mattis had retired.

….equipment. General Mattis was a great help to me in getting allies and other countries to pay their share of military obligations. A new Secretary of Defense will be named shortly. I greatly thank Jim for his service!

— Donald J. Trump (@realDonaldTrump) December 20, 2018

Mattis’ letter does not include the word ‘retirement.’ The resignation letter to the president, dated Dec. 20, the 68-year-old Mattis outlined his reasons for leaving. Though he doesn’t mention the decision in Syria by name, he says that Trump deserves a Secretary of Defense “whose views are better aligned” with his.

“One core belief I have always held is that our strength as a nation is inextricably linked to the strength of our unique and comprehensive system of alliances and partnerships,” Mattis wrote in the letter. “While the U.S. remains the indispensable nation int he free world, we cannot protect our interests or serve that role effectively without maintaining strong alliances and showing respect to those allies.”

Defense Secretary James Mattis has resigned. Here’s the letter: pic.twitter.com/e2PulyXpXZ

— Elizabeth Beals (McLaughlin) (@Elizabeth_McLau) December 20, 2018

Mattis joins a long list of advisors who have left their post during Trump’s tenure, and rumors that he would leave have been swirling for months.

Prior to Trump’s Wednesday announcement on Syria, the president and his advisors reportedly engaged in an intense discussion on the topic, in which they believed to have convinced Trump not to withdraw. He later defended his decision to pull all 2,000 troops on Twitter, pointing out that it was one of his campaign platforms.

Getting out of Syria was no surprise. I’ve been campaigning on it for years, and six months ago, when I very publicly wanted to do it, I agreed to stay longer. Russia, Iran, Syria & others are the local enemy of ISIS. We were doing there work. Time to come home & rebuild. #MAGA

— Donald J. Trump (@realDonaldTrump) December 20, 2018

 

About the Author
By Emily Gillespie
See full bioRight Arrow Button Icon

Latest in Leadership

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Leadership

Mel Robbins
SuccessGen Z
Millionaire podcaster Mel Robbins hits back at Gen Z’s lazy label—she says they’re stuck in a world their baby boomer parents wouldn’t even recognize
By Emma BurleighMay 23, 2026
1 hour ago
Is a college degree still worth it? Here are 3 things it can teach you that AI can’t do
Future of WorkColleges and Universities
Is a college degree still worth it? Here are 3 things it can teach you that AI can’t do
By Jake AngeloMay 23, 2026
2 hours ago
employees
CommentarySuccession
Millions of business owners are about to retire. They should sell to their employees
By Matt Helmer and Maxwell JohnsonMay 23, 2026
4 hours ago
Ashley Yetman
Commentarydisruption
Everyone is blaming AI for the death of ‘craft.’ Take a good look in the mirror
By Ashley YetmanMay 23, 2026
4 hours ago
Josh Smith, founder of Montana Knife Company.
SuccessEntrepreneurs
This 39-year-old quit his lineman job during the pandemic and built a $50 million company in his backyard
By Nick LichtenbergMay 23, 2026
4 hours ago
Jon McNeill
SuccessCareers
Former Tesla president shares the secret to success he learned from his former boss, Elon Musk: ‘He demands to only work with world-class talent’
By Preston ForeMay 23, 2026
5 hours ago

Most Popular

Jeff Bezos wants the bottom half of earners to pay zero income tax—he says nurses making just $75K should save $12K a year
Success
Jeff Bezos wants the bottom half of earners to pay zero income tax—he says nurses making just $75K should save $12K a year
By Preston ForeMay 21, 2026
2 days ago
Indeed chief economist says we’re entering an era of ‘great mismatch’ thanks to a generational imbalance of workers
Success
Indeed chief economist says we’re entering an era of ‘great mismatch’ thanks to a generational imbalance of workers
By Emma BurleighMay 22, 2026
23 hours ago
Microsoft reports are exposing AI's real cost problem: Using the tech is more expensive than paying human employees
AI
Microsoft reports are exposing AI's real cost problem: Using the tech is more expensive than paying human employees
By Jake AngeloMay 22, 2026
22 hours ago
Despite a $500 million net worth, Shaq just finished his fourth degree. He warns graduates: 'Your character will take you further than your resume'
Success
Despite a $500 million net worth, Shaq just finished his fourth degree. He warns graduates: 'Your character will take you further than your resume'
By Preston ForeMay 20, 2026
3 days ago
Apple’s Steve Wozniak says he cofounded the tech giant after 5 rejections from HP—not to ‘make money.’ For years, his paycheck was just $50
Success
Apple’s Steve Wozniak says he cofounded the tech giant after 5 rejections from HP—not to ‘make money.’ For years, his paycheck was just $50
By Preston ForeMay 22, 2026
1 day ago
Bolt CEO says he let go of his entire HR team for creating problems that didn’t exist: ‘Those problems disappeared when I let them go’ 
Workplace Culture
Bolt CEO says he let go of his entire HR team for creating problems that didn’t exist: ‘Those problems disappeared when I let them go’ 
By Preston ForeMay 19, 2026
4 days ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.