Answer :
Final answer:
The main contribution of Savannah and Brunswick during World War II was the production of Liberty ships for the Allies.
Explanation:
The main contribution of the port cities of Savannah and Brunswick during World War II was that they held large shipyards that produced Liberty ships and supplied the Allies. These cities played a significant role in the war effort by constructing and launching these cargo ships, which were crucial for transporting troops, supplies, and equipment to the war fronts. The shipyards not only boosted local economies but also contributed significantly to the overall success of the Allied forces.
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