Chinese military conducts training drill near Myanmar border

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LONDON (AP) — Britain is set to formally file for divorce from the European Union, ending a 44-year relationship following the decision made by U.K. voters in a referendum nine months ago. Prime Minister Theresa May is due to announce in the House of Commons Wednesday afternoon that she has invoked Article 50 of the EU's key treaty, triggering a two-year countdown to Britain's exit. At the same time, Britain's EU envoy, Tim Barrow, will hand-deliver a letter from May to EU Council President Donald Tusk. May's office says she will tell lawmakers that the U.K. is embarking on a "momentous journey" and should unite to forge a "global Britain." Britain and the EU have two years to unpick a tapestry of rules, regulations and agreements stitched over more than four decades.

UK set to file for EU divorce, triggering 2 years to Brexit