It was the "Cold War" that <span>triggered the United States to issue the Truman Doctrine, since this Doctrine stated that the US would actively engage in stopping the spread of communism. </span>
I believe the demand for automobiles in the 1920s stimulated growth in many other industries. Think of the other things that came after automobiles. ;)
Philip II invaded England <span>to spread Catholicism.
</span>