Territorial Expansion of the Grand Duchy of Moscow (1430s)

Timeline

1. 1433–1434Galich · RussiaVasily II captured Galich during the civil war, eliminating Yuri's line's local rule there and bringing the strategic upper Volga region into Moscow's domain—one of the most important territorial gains of the 1430s.
2. 1435–1438Beloozero · RussiaMoscow successively absorbed smaller principalities such as Beloozero and Mozhaysk, gaining control of northern forest resources and the route to Smolensk, with expansion continuing steadily amid the civil war.
3. 1439–1440Moscow · RussiaBy 1440, Moscow's territory covered the Rus' heartland, the upper Volga, and northern forest regions, encircling remaining independent principalities like Tver and Novgorod, markedly accelerating unification.