Three and a half years after the Brexit referendum, the United Kingdom is making its long-anticipated departure from the European Union. But this, of course, isn't the end of the geopolitical saga that has swept headlines since British citizens first voted to leave the bloc in June 2016. While politicians in Brussels and London agreed to the terms of the Jan. 31 exit , now comes the even bigger task of outlining their future bilateral relationship. Though if the countless Brexit negotiations over the years tell us anything, it's that the upcoming discussions between the European Union and the United Kingdom are bound to yield even more rounds of drama in 2020. At the end of the day, however, the desire to end the uncertainty plaguing both economies will ultimately keep London and Brussels coming back to the negotiating table.