briefly describe one specific historical similarity between the united states reaction to international events following the first world war (1919-1930) and following the second world war (1945-1960)

Plz me on september 17, 1860to the union and confederate army’s fought the in maryland. it was one of the bloodiest battles in the civil war. a. battle of the seven pines. b. battle of antietam c. first battle of bull run. d. second battle of bull run.