Prime Minister Theresa May formally began Britain’s divorce from the European Union on Wednesday, saying there was “no turning back” from a decision pitching her country into two years of “messy” negotiations. Nine months after Britons voted to leave, May notified EU Council President Donald Tusk in a letter that Britain was quitting the bloc it joined in 1973. “The United Kingdom is leaving the European Union,” May later told parliament in London. “This is an historic moment from which there can be no turning back.”
