Dhaka, April 23 -- For eight decades the United States has built a global order around its interests and values. In 100 days, Donald Trump has torn it down.The United States remains, by most measures, the world's most powerful country and Trump has vowed to strengthen it further by aggressively promoting domestic business and ramping up military spending.But the Republican billionaire offers a far more unilateralist vision than any modern US president. Reviving views long seen as antiquated, Trump has vowed US expansionism, setting sights on the Panama Canal, Greenland and Canada, which he has belittled as the "51st state."In another throwback, Trump imposed sweeping tariffs on both friends and foes - a step that was mostly suspended foll...