The causes of wars are complex. In some instances nations other than the
U.S. may have been responsible for more deaths, but if the involvement
of our nation appeared to have been a
necessary cause of a war or conflict it was considered responsible for
the deaths in it. In other words they probably would not have taken
place if the U.S. had not used the heavy hand of its power. The military
and economic power of the United States was crucial.