In a commemorative speech, the speaker's goal is to highlight the events that occurred and to explain why things that had happened had happened. During the speech, a general sentiment about the event is expressed which can be either joyful or sorrowful depending on the occasion. World war 2 commemorative speeches are usually full of dread because of the horrors that happened in the war.
"As a result of some former Confederate states' refusal to ratify the Fourteenth Amendment," Possible answer = Congress established military rule in the South.