The Germans had gone too far. On April 2, 1917, President [[Woodrow Wilson]] spoke in favor of declaring war on Germany in an address to the joint houses of Congress. Congress then formally declared war on April 6, 1917.<ref>http://www.firstworldwar.com/source/usofficialawardeclaration.htm</ref> | The Germans had gone too far. On April 2, 1917, President [[Woodrow Wilson]] spoke in favor of declaring war on Germany in an address to the joint houses of Congress. Congress then formally declared war on April 6, 1917.<ref>http://www.firstworldwar.com/source/usofficialawardeclaration.htm</ref> |