BRUSSELS — The European Union and Canada on Sunday signed a landmark trade pact, ending days of drama after a small Belgian region refused to endorse the agreement.

Canadian Prime Minister Justin Trudeau, European Council President Donald Tusk, European Commission President Jean-Claude Juncker and Slovak Prime Minister Robert Fico, whose country holds the EU’s rotating presidency, put an end to the suspense by signing the Comprehensive Economic and Trade agreement.

The EU needed unanimity among all its 28 members and Belgium needed the backing of all its regions to approve the pact known as CETA.

Trudeau had been due to sign it on Thursday, but was forced to cancel his flight when Belgium couldn’t sign on because of opposition from the Wallonia region.

The EU says CETA will remove more than 99 percent of tariffs and boost trade with Canada by $13.2 billion a year, creating economic growth and jobs on both sides of the Atlantic.