President Trump is traveling to Miami today, where he’ll announce a reversal of the historic normalization of relations between the U.S. and Cuba that was brokered by President Obama. Trump is expected to crack down significantly on travel between the U.S. and Cuba—less than a year after direct commercial flights between the two countries resumed after being barred for more than 50 years. The New York Times reports Trump is also expected to prohibit all business with companies that are linked to the Cuban military, which is involved in much of the hotel and tourism industries.