BERLIN, GERMANY - NOVEMBER 18: German Chancellor Angela Merkel greets British Prime Minister Theresa May upon her arrival for talks with European leaders at the Chancellery on November 18, 2016 in Berlin, Germany. May and Merkel will hold talks with French President Francois Hollands, Italian Prime Minister Matteo Renzi, Spanish Prime Minister Mariano Rajoy and U.S. President Barack Obama today on Obama's last trip to Europe as U.S. President. (Photo by Alexander Koerner/Getty Images)