<span>
It consumed him to the point that he decided not to run for re-election
in 1968. By the end of his administration, we were in very deep in
Vietnam, and the war was not going well.
</span>
That depends on which historical empire you are considering when you ask. However in general an emperor serves as a figurehead of a government and absolute ruler of the military.
John Adams was criticized for defending the British soldiers who were involved