 "Threats from Russia, China 'growing'; US must be prepared for war: Mattis")
Defence Secretary James Mattis has resigned, telling Donald Trump in a letter that he should choose a person who is more in tune with his world view after the US president decided to withdraw American troops from Syria.
Trump announced the resignation in two tweets on Thursday evening, and said Mattis, will leave at the end of February. Mattis was a great advocate of India-US defence relationship. In his extraordinary resignation letter, Mattis told Trump he had "the right to have a Secretary of Defence whose views are better aligned with yours".
Mattis' resignation letter, a Pentagon spokeswoman said was hand-delivered
