The UK government's Northern Ireland policy after Brexit: a retreat to unilateralism and muscular unionism

Brexit has significantly altered the trajectory of UK government policy towards Northern Ireland. The peace process was implicitly built on a presumption of continued joint EU membership by the UK and Ireland. The EU model of interdependence and cooperation was explicitly stated to be an inspiration by its key architect John Hume. However, the history of British-Irish cooperation over Northern Ireland is long and complex and cannot solely be understood through the lens of Europeanisation. Despite this, the aftermath of the 2016 referendum has seen a retreat by the UK government from a bilateral and consensual approach towards Northern Ireland to unilateralism and a 'muscular' unionist ideology. This has affected their governance there, hampering their relationship with local parties and undermining the agreed role of the Irish government. The impact of Brexit on UK government policy towards Northern Ireland has undoubtedly contributed to the destabilisation of the political settlement.