||Tomorrow, the attack on Germany begins, but today, we must protect our facility from Allied attacks. Keep the Command Center intact at all costs, and destroy any Allied fortification you might find.
- Mission briefing
The Thin Red Line is the second mission in the Soviet campaign of Red Alert.
Stalin's dream of conquering Europe was about to begin. The Soviet military had started mobilising for the invasion of Western Europe, but needed more time. Knowing that the Allies could hardly notice a Soviet build-up at the German-Polish border, Commander Kukov called upon an up-and-coming Soviet commander to guard the bridges that were key to the Soviet invasion of Germany. The mission was to defend the Soviet command post at one of the two bridges, and eliminate all the Allied forces guarding their side of the bridge.