Estonia

Baltic country absorbed into the Soviet Union following the Molotov-Rippentrop Pact of 1939 which divided eastern Europe into German and Soviet spheres of influence. The country was quickly overrun by the Germans when they broke the agreement in 1941 and largely held by the Wehrmacht during the Race Invasion despite being cut off from resupply except by sea or from the Soviets. The Soviet Union regained the country as a Soviet Republic after the Peace of Cairo which probably involved fighting between the Red Army and German remnants.