The German Empire conquered Ukraine during World War I and was planning on either annexing it or installing a puppet king, but was defeated by the Entente, with major involvement by the Ukrainian Bolsheviks. After conquering the rest of Ukraine from the Whites, Ukraine joined the USSR and was enlarged (gaining Crimea and then Eastern Galicia), whence a process of Ukrainization was begun, with encouragement from Moscow.
What nation conquered Ukraine during the First World War? What alliance defeated the German Empire in World War I? What Ukrainian political group was involved in the defeat of the German Empire? Who did the Ukrainian Bolsheviks conquer the Ukraine from?