
Friends in need, friends indeed? Explaining variation in military support to Ukraine
European Journal of International Security, Cambridge University Press, 10 avril 2025, Justin Massie
Justin Massie, titulaire du Réseau d’analyse stratégique (RAS), co-signe avec Barbora Tallová un article de recherche dans le dernier numéro de l’European Journal of International Security.
Abstract
The war in Ukraine has fostered a renewed sense of common purpose and solidarity in the West. It has also exposed deep-seated divisions regarding the provision of military support to Ukraine and the fate of the European strategic architecture. While some states have committed high levels of military support to Ukraine, others have limited their help to token military aid. This paper examines why democratic allies diverge in their foreign policy on Ukraine and Russia using an integrated framework of strategic, economic, and domestic incentives and constraints. It offers a Qualitative Comparative Analysis of 32 Western allies to uncover causal paths leading towards the provision of military support to Ukraine. The findings highlight the role of defence spending, geography, and threat perceptions during the first year of the war. Ultimately, the analysis identifies four causal paths covering 9 of the 13 greatest military aid contributors to Ukraine, as well as 14 of the 19 token aid donors. It reveals the Baltic states and Poland as the most typical military supporters, while Belgium, Romania, and Canada feature as typical token contributors.