This dispute, brought by Ukraine against Russia, provides the first discussion in a World Trade Organization (WTO) Panel or Appellate Body Report of the security exception in Article XXI of the General Agreement on Tariffs and Trade 1994 (GATT). Unusually for a WTO dispute, the Panel (chaired by former WTO Appellate Body Member Georges Abi-Saab) found that Russia had not acted inconsistently with any of the claimed obligations under the GATT or Russia's Accession Protocol. Central to that conclusion was the Panel's understanding of the GATT security exception and the circumstances surrounding the imposition of the challenged measures, which related to trade in transit by road and rail through Russian territory. The Panel found that, since 2014, an emergency in international relations existed between Russia and Ukraine within the meaning of GATT Article XXI(b)(iii) and that the challenged measures fell within this exception. If the exception had not applied, according to the Panel, Ukraine would have established a prima facie case of violation of the provisions on freedom of transit in GATT Article V:2 and equivalent provisions in Russia's Accession Protocol. The decision, which neither party chose to appeal, has significant implications for other disputes in which the security exception has been invoked.