With conflict raging on for years, none of the Western interventions in Afghanistan, Syria, Libya and Mali may be called a success to date. This raises some serious questions about their legitimacy and efficacy that will be addressed in this episode of the Clingendael Spectator series on Western interventions. Given their limited impact and due to geopolitical shifts, will it become more difficult for Western nations to engage in such armed interventions? Is the UN still relevant in addressing conflicts with major humanitarian crises? What are the consequences of intervention without a UN mandate?