Why could the title of the 1989 film Glory be considered ironic?

In the film
Glory, the title is a perfect example
of irony, a term which means the opposite of what you expect.   When someone sees or
hears the word glory, the expectation is that someone or something will achieve great
recognition or fame.  During war, one expectation of glory is to earn the respect of
other officers or regiments, or achieve medals for bravery.  Ironically, in the film
Glory, which is set during the Civil
War and involves a regiment of black Union soldiers and their lieutenant, glory or
rewards do not appear. The viewer of the film waits for the moment of glory that the
title has lead them to expect. Instead, the audience watches the black men fight to
become soldiers, fight to get shoes as white units have, and wait for a leader because
to be their leader would lead to ridicule. One officer finally chooses to lead them and
teach them to be soldiers.  They do become a cohesive fighting unit loyal to each other
and the lieutenant who leads them.  In the end of the film, the unit is chosen to be in
the front of the battle, a suicidal position. Knowing that they will die, the men
bravely follow their leader into a horrific battle with no expectation of reward or
glory but to die in the cause of freedom for all including slaves.  Ironically, the film
ends with the word Glory printed over the dead bodies of brave black soldiers.
Certainly, death is not the glory the audience was led to expect; hence, the scene and
the movie's title are clearly ironic.