"I cannot prophesy. I cannot tell you when or where the United Nations are going to strike next in Europe. But we are going to strike—and strike hard." - President Roosevelt's State of the Union address.
This speech was given to the state of the union, but was aimed to be heard by all the globe, by the enemies of the nation and by the americans in general, in 1943 when Teddy Roosevelt spoke about the strength of the country and the strength of its army.
A because they idea of the Articles of Confederation looked much better on paper, to unite the 13 Colonies, and C because, once the Articles were put into play, Congress never had any real power.