 Complete the following phrase:  In a press conference at The O2 Arena on 15 December 2016, the American professional wrestling promotion WWE announced plans to establish a United Kingdom-based brand on which professional wrestlers from the country would compete. A mens title, the WWE United Kingdom Championship later renamed to NXT United Kingdom Championship, was established that same day, however, it was not until mid-2018 when NXT UK was formally established as the United Kingdom-based brand, and sister brand of the American-based NXT. On 18 June during the first night of the 