Why is the future US Defence Secretary known as 'Mad Dog'?
Retired General James Mattis, selected by US President-elect Donald Trump as Defence Secretary, is known as the 'Mad Dog' for his memorable quotes, known as 'Mattisisms'. He once said to Iraqi leaders, "I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes: If you f**k with me, I'll kill you all".