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what are the difference between world war 1 and 2

ww1 was fought in trenches and used machines gubs and poisonous gas, WW2 was fought ising modern artillery and machines ytilizing more airplanes,ships,tanks,and submarines. special operation methids were also developed during this war together with atomic missils and secret communications.

in february 1787, congress decided that a convention should be convened to revise the articles of confederation, the nation’s first constitution. in may, 55 delegates came to philadelphia, and the constitutional convention began. debates erupted over representation in congress, over slavery, and over the new executive branch. the debates continued through four hot and muggy months. but eventually the delegates reached compromises, and on september 17, they produced the u.s. constitution, replacing the articles with the governing document that has functioned effectively for more than 200 years.