#SecDef

A pleasure to host #SecDef James Mattis at Amazon HQ in Seattle today

#SecDef: Our mission is demanding & constantly changing. I couldn't be prouder of you, for what you do every day. Thank you & farewell.

#SecDef: F-35s will help U.S. and Israel air forces operate more jointly and more effectively. Together, we will dominate the skies.

#SecDef James Mattis arrives at the #Pentagon on his first full day of office in #WashingtonDC, January 21, 2017.

Tune in as @POTUS & @VP attend the ceremonial swearing in of #SecDef Jim Mattis at the #Pentagon on

#SECDEF Mattis met this morning with military service chiefs and combatant commanders during Senior Leaders Week at the #Pentagon.

#SecDef Carter watches a F-18 take off from the flight deck of @stennis74, currently sailing in the South China Sea

#SecDef Mattis met with @VP today at the #Pentagon to discuss our military’s assets in #space and #cyberspace.

#SecDef Jim Mattis is a busy man, but never too busy to help fellow service members, including re-enlisting them:

#SecDef Carter welcomes Saudi Arabia MinDef Mohammad bin Salman to the Pentagon for a meeting on security issues

Congratulations to James Mattis, our 26th Secretary of Defense. Welcome, sir! #SecDef

"We're going to restore readiness … and we're going to build a more lethal force in the process," says #SecDef James N. Mattis

#SecDef Mattis & #GenDunford @TheJointStaff brief reporters at the #Pentagon on #Syria

It's been a busy day at the #Pentagon! #SecDef Jim Mattis hosts a full honors parade prior to the North American Defense Ministerial.

LIVE: #SecDef Mattis & Vice Chairman @TheJointStaff #GenSelva host @VP at #Pentagon 9/11 ceremony. #NeverForget

Watch Live Sept. 11: -9/11 remembrance flag unfurling @ 6:47 am ET at the #Pentagon -#SecDef Mattis, Vice Chairman of @TheJointStaff Gen. Paul J. Selva host @VP during a 9/11 memorial ceremony at @ 9:10 am ET at the #PentagonMemorial. #NeverForget #PatriotDay

#SecDef receives the @Glenn_College of #PublicAffairs 2017 Excellence in Public Service Award at 6:30 p.m. EDT on

Ten things to know about new #DoD #SecDef James Mattis

"The 184 people whose lives were lost, their families & all those who sacrificed, we will #NeverForget911." - #SecDef

“It’s all based on lethality!” - #SecDef James N. Mattis. Five separate services with one mission on the ground, in the sea, in the air and in space. Get to #KnowYourMil. ➡️