<span>The Attack on Pearl Harbor by the Japanese caused the US to join WW2.</span>
Abraham Lincoln assassinated in 1865 James Garfield in 1881 William McKinley in 1901 John F. Kennedy in 1963.
The believe that the answer to the question asked above is that it<span> is decided by how many people are needed to give control of the district.</span>
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<span>The OWM supervised OES, war production Board, and other agencies. Hope this helps :)</span>