The protracted and violent collapse of Yugoslavia was one of the profound international crises following the end of the Cold War. The inability of the United Nations to stop the bloodshed, the retreat of Russian power alongside the failure of the European powers to reach a common approach, and the ultimate deployment of US-led NATO forces to settle the Bosnian War and later to conduct the Kosovo War exposed the unlikelihood of what George H.W. Bush had hailed as a 'new world order' based on collective security. The wars of succession in the former Yugoslavia in fact provided the springboard for a different vision of global security under American hegemony, which would characterise in particular George W. Bush's project to reshape global affairs in the new millennium (Rees, 2006, esp. pp. 34-35). It is unsurprising in this context that scholarly production relating to the collapse of Yugoslavia and its importance for international relations has been immense (for a recent short overview: Baker 2015). This article will explore an under-researched aspect of the Yugoslav Wars, namely, their impact on the British Labour Party. While studies of New Labour's foreign policies abound (for an overview, see: Daddow and Gaskarth, 2011), few accounts have emerged of the impact of the Yugoslav Wars on the Labour Left. The latter's decline, which became visible in the mid-1980s, did not make it an attractive proposition for study: it seemed hardly relevant (works exploring the radical left in Britain like Smith and Worley, 2014, were a rarity). With the unexpected election of Jeremy Corbyn to the leadership of the Labour Party in September 2015, however, this changed, with multiple works emerging (Seymour, 2017; Perryman, 2017; Hannah, 2018). While worthwhile, such publications are only the beginnings of an attempt to overcome the lack of serious documented investigations into the activities of the Labour Left generally and since the 1980s especially.