Abstract
In spite of numerous suspensions in its initial years, nationalist and unionist parties shared power for an uninterrupted 10 years from 2007-17. At the time of writing, however, Northern Ireland finds itself in a seemingly intractable political crisis, produced by both internal and external factors, and the future of power-sharing hangs in the balance. The impasse underlines the need for broad inclusion in power-sharing arrangements, beyond the core ethno-national parties. It further speaks to the importance of continued constructive engagement from external actors, who were central to the conflict and remain central to its resolution.