Which nation joined the Eurozone as its 20th member after recently adopting the euro in place of its kuna currency?

Croatia entered the borderless zone of Europe and adopted the euro, which Prime Minister Andrej Plenkovic hailed as a historic moment for his nation. The country of the Balkans said goodbye to its kuna currency and joined the Eurozone as its twentieth nation. The Schengen region now has 27 countries that do not require passports. It is the biggest zone in the world and allows more than 400 million people to move freely within its boundaries. The 3.9 million-person nation became a member of the EU in 2013.