Ukraine No. 1 (2026) Agreement No. 4 in the form of an Exchange of Letters between the United Kingdom of Great Britain and Northern Ireland and Ukraine amending Agreement No. 3 in the form of an Exchange of Letters between the United Kingdom of Great Britain and Northern Ireland and Ukraine amending the Political, Free Trade and Strategic Partnership Agreement between the United Kingdom of Great Britain and Northern Ireland and Ukraine. London and Kyiv, 16 January 2026
Command Paper, CP 1499