After heavy shelling and bombing, Warsaw surrendered to the Germans on September 27, 1939. Britain and France, standing by their guarantee of Poland's border, had declared war on Germany on September 3, 1939. The Soviet Union invaded eastern Poland on September 17, 1939.
Bandits were a common threat along the Silk Road. The bandits learned that not only silk was being traveled through those roads, but also gold, precious stones, glass, and other materials from China.
In my view, correct answer is: This 1863 poster is recruiting African Americans to help <span>(2)assist in the efforts of the Underground Railroad.</span>
