BRUSSELS A controversial trade deal between the EU and South America's Mercosur bloc is back in the spotlight with renewed hopes of a deal by year end, despite fierce opposition from key country France . The blockbuster trade pact between the 27-country European Union and Mercosur countries, Brazil, Argentina, Paraguay and Uruguay, has been 25 years in the making and would create the world's biggest free trade zone. The contours of a deal were agreed in 2019 but some EU states blocked its