1. READ/play the text
2. CLICK the picture (and video)
3. TRY this:
Q1: How did the Americans make a difference?

[Answer]

The sinking of the Lusitania made Americans angry, but not angry enough. Then the Germans suggested to the Mexicans that they might join forces and attack America. That made Americans furious. It tipped the balance and America declared war.

The Americans sent 10,000 new, fresh troops to the Western Front each day. The extra manpower and new guns was what tipped the balance.

The Germans soon saw they could not win. They began to look for a peace treaty.