Secretary of Defense James Mattis appeared on CBS' "Face the Nation" this morning and spoke with James Dickerson about a number of national security issues, including ISIS, North Korea, the Manchester bombing, NATO, and the Paris climate agreement.
Mattis, a retired General and former Commander of the United States Central Command, had a storied Marine career and was hailed as "The most revered Marine of his generation" upon his retirement in 2013. To say that he's probably seen some things is an understatement.
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https://townhall.com/tipsheet/jennifervanlaar/2017/05/28/mad-dog-mattis-tells-us-what-keeps-him-up-at-night-n2332636