Which event contributes most to the "reward" at the end of the story?

What is the main idea of this paragraph from the volcanoes section of the ready.gov website

The gift of magi: explain two falling action events from your novel or short story and how they relate to the climax

Americans were concerned about being drawn into another war in europe. how well did president roosevelt address conflicting evidence and viewpoints? use textual evidence from the speech to support your ideas.