(CNN) — Here’s a look at the life of retired Marine General James Mattis, the former secretary of defense. Known for his blunt style of speech and extensive knowledge of military strategy. Also known ...

President-elect Donald Trump said Thursday he will nominate retired Gen. James Mattis to be his defense secretary, making the announcement at a post-election victory rally in Cincinnati. Mattis, 66, ...

Washington — Secretary of Defense Jim Mattis will be leaving his post two months earlier than initially reported. Mattis resigned Thursday in protest over President Donald Trump's abrupt decision to ...

At a "Thank You" rally last night in Cincinnati, Donald Trump got a campaign-style reception and made news by announcing a major cabinet nominee, "We are going to appoint Mad Dog Mattis as our ...

WASHINGTON • Defense Secretary Jim Mattis is stepping down from his post, President Donald Trump announced Thursday, after the retired Marine general clashed with the president over a troop drawdown ...

The Senate Armed Services Committee has overwhelmingly approved President-elect Donald Trump's pick for defense secretary. The Republican-led panel voted 26-1 Wednesday to recommend that the full ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American James N. Mattis is the four-star Marine ...

WASHINGTON (AP) — Breaking once more from presidential custom, Donald Trump is turning to a military man to steer the U.S. military, choosing retired Gen. James Mattis, who will be the first career ...

WASHINGTON -- A U.S. official says Defense Secretary Jim Mattis is expected to sign an order as early as Thursday sending 800 or more troops to the southern border to support the Border Patrol. Mattis ...