Unilateral Wihdrawals from Multilateral International Treaties (UWMIT) dataset

This dataset is published as supplementary material for the journal article titled, "Unilateral Withdrawals from Multilateral International Treaties, 1945–2024" in Global Governance: A Review of Multilateralism and International Organizations, Volume: 31-2, 2025. Unilateral withdrawals from multilateral international treatie<b>s</b> (MIT s) constitute a substantial state behavior that offers insights into interstate cooperation and dynamics of treaty regimes. While much attention has been given to state withdrawals from intergovernmental organizations (IO s), relatively recent high-profile exits, such as the US withdrawal from the Iran Nuclear Deal and Turkey’s withdrawal from the Istanbul Convention, bring unilateral state withdrawals from MIT s to the forefront of scholarly and political debates. This paper contributes to the literature by presenting an<b> original dataset that involves 945 unilateral withdrawals from 206 multilateral treaties from 1945 to 2024</b>, investigating withdrawal reasons and issue areas.