After years of angry arguments that toppled two governments, Britain’s parliament Thursday will finally approve the terms of Brexit, clearing the divided country’s exit from the European Union on January 31. The House of Commons will rush through a final day of hearings and ratify Prime Minister Boris Johnson’s divorce deal with Brussels, drawing a line under an extraordinary period of political chaos. For much of the time since the 2016 Brexit referendum, lawmakers have been deadlocked over how, when and even if Britain should leave its closest trading partners after nearly 50 years.