Following weeks of speculation and intelligence reports, the Russian government initiated new military operations in Ukraine beginning on 24 February. This military attack has had immediate far-reaching impacts, sparked a massive humanitarian crisis, and raised serious concern about potential ecological damage. On the global stage, a range of actions have been taken in response, including measures within the United Nations (UN). This document provides brief details on the response by specific UN bodies thus far and does not include information on all actions taken by UN entities or individual Member States. A letter by the Directors of QUNO’s Geneva and New York offices accompanied the release of this document and can be read here.