What available possibilities other than dropping atomic bombs on hiroshima and nagasaki might have existed

When Kennedy was president Americans believed that Cuba would send nuclear missiles over the wall, and they were so close to war everyone practiced Bomb drills and made bomb shelters.ヾ(^ω^*)

lee and grant, both of whom held the highest rank in their respective armies, had known each other slightly during the mexican-american war (1846-48) and began their dialogue by exchanging awkward personal inquiries. characteristically, grant had arrived in his mud-splattered field uniform while lee had turned out in full dress attire, complete with sash and sword.

explanation: