Yui Mok
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Britain’s Foreign Secretary, Boris Johnson, arrives to speak at the Chatham House London Conference at an hotel in London, Monday Oct. 23, 2017. Johnson is urging North Korea to “change course” and engage in diplomacy to resolve the crisis over its nuclear ambitions. But he says U.S. President Donald Trump is right to keep the option of military action open. (Yui Mok/PA via AP)