January 20, 2017 is a history of the United States when their 45-year-old president Donald Trump came to power. He is an unprecedented president in American history, not a politician, with little political experience, he is an entrepreneur, a global billionaire. The fact that Mr. Donald Trump is president of the United States is considered a special phenomenon, bringing strange wind to American politics and many questions to the content of the world will be when Mr. Donald Trump is US president. All were thrilled and there were plans for policy responses that were expected to have huge changes for Mr. Trump from the time he was elected. And within the past year, Donald Trump has made major adjustments in foreign affairs, gradually shaped the foreign policy of the US. In particular, the US has clearly defined policies for each region in the world with differences from the previous period.