The United Kingdom left the European Union, also known as “Brexit.”
The withdrawal agreement was ratified at 23:00.
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The European Union expanded the 1951 Stresa Convention.
During an interview with CBS, Donald Trump stated that the European Union is his biggest foe.
Romania and Bulgaria signed the European Union's Treaty of Accession, the last step to joining the Union.
The European Union formally opened accession negotiations with Ukraine.
Romania and Bulgaria joined the European Union.