The former head of US Central Command, Mattis was a central figure in the US invasions of Afghanistan and Iraq. He is known for his strong anti-Iran stance and blunt words, one of the most popular quotes being "Be polite, be professional, but have a plan to kill everybody you meet", the motto he expected US Marines to follow in Iraq.
'Mad Dog' to Rule the Pentagon
22:43 GMT 02.12.2016 (Updated: 11:25 GMT 06.08.2022)
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In a surprise move, President-elect Donald Trump announced on Thursday that retired Marine Corps General James ‘Mad Dog’ Mattis is his pick for secretary of defense.