I think Mattis has been quite busy taking out ISIS. ISIS was a foremost threat to the USA and all western states. Trump had the wisdom to put Mattis in charge. ISIS is now a whiff of air as they have been destroyed. All that remains is a fragment here and there and they were defeated in ONE YEAR. Give credit where credit is due.
Let me remind you of the words of Abraham Lincoln: “From whence shall we expect the approach of danger? Shall some trans-Atlantic military giant step the earth and crush us at a blow? Never. All the armies of Europe and Asia...could not by force take a drink from the Ohio River or make a track on the Blue Ridge in the trial of a thousand years. No, if destruction be our lot we must ourselves be its author and finisher. As a nation of free men we will live forever or die by suicide.”