Trump's Pentagon pick says U.S. must be ready to confront Russia

By Phil Stewart and Idrees Ali WASHINGTON (Reuters) - President-elect Donald Trump's pick to lead the Pentagon told Congress on Thursday the United States must be ready to confront Russian behaviour in areas where the two countries cannot cooperate, even as he backed Trump's bid to engage with Moscow. The remarks by retired Marine General James Mattis in written responses to questions from Congress are likely to set the tone for a Senate Armed Services Committee confirmation hearing that began a