American Policy timeline By bulldogns59 May 4, 1867 French invasion of mexico in 1867 the French invade mexico. Policy:Isolation and Monroe doctrine May 4, 1899 Trade wars in china May 4, 2010 U.S. enters ww2 May 4, 2010 spanish Amerrican War begins The policys used during this time were.The isolatin policy and also the Moroe doctrine. May 4, 2010 panama canal authorized May 4, 2010 U.S. enters WW1 May 4, 2010 United nations established May 4, 2010 Berlin Blockade
