Ukrainian-Soviet War: An armed uprising organized by the Bolsheviks in anticipation of the encroaching Red Army begins at the Kiev Arsenal, which will be put down six days later.

Kiev Arsenal January Uprising (Ukrainian: Січневе повстання Sichneve povstannya), sometimes called simply the January Uprising or the January Rebellion, was the Bolshevik-organized workers' armed revolt that started on January 29, 1918 at the Arsenal factory in a Kiev (Kyiv) during the Ukrainian-Soviet War. The goal of the uprising was to sabotage the ongoing elections to the Ukrainian Constituent Assembly and to support the advancing Red Army.