What is the main conflict in The Conquerors by Phyllis McGinley?

The main conflict is centered around the use of the atom bomb during WWII. In the first line, McGinley uses the word vainglorious, which means conceited or to believe that one is self-important. Her use of this word sets the tone of the entire poem, as she mocks any American who might have been feeling high and mighty with regard to the U.S. victory in World War II. It is easy to infer from the opening lines that McGinley's purpose is to humble and chastise anyone. who might feel proud about killing fellow human beings.