Voting began across Europe Sunday on the final — and biggest — day of marathon EU elections, with balloting due in 21 countries, including France and Germany, where support for surging far-right parties is being tested.

It is a pivotal time for Europe. The continent is confronted with the war in Ukraine, global trade and industrial tensions marked by U.S.-China rivalry, a climate emergency and a West that within months may have to adapt to a new Donald Trump presidency.

The vote outcome will determine the bloc's next parliament and indirectly the makeup of the powerful European Commission — thus helping to shape European Union policies over the coming five years.