title: Ukraine As a Shield For Europe: the Russian Invasion and the Reshaping of International Security
abstract: This article explores the impact of the Russian-Ukrainian military conflict – de facto a war – on the transformation of the international security system. The full-scale invasion launched in 2022 exposed critical vulnerabilities in global governance and challenged the foundational principles of peace and sovereignty across the European space. The study aims to analyse Ukraine’s evolving role as both a security actor and a normative force. To this end, it examines the country’s repositioning in r
journal: Acta de Historia & Politica Saeculum XXI