Secretary of Defense Jim Mattis asks troops to 'hold the line until our country gets back to understanding and respecting each other' Read more: http://www.dailymail.co.uk/news/article-4826912/Secretary-Defense-Jim-Mattis-gives-talk-troops.html#ixzz4r4AcyEcE Follow us: @MailOnline on Twitter | DailyMail on Facebook

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