Answer:
<h2>FALSE</h2>
<h2>(DO NOT COPY IF WRONG)</h2>
One incident would definitely be during the cold war more specifically during The Bay Of Pigs
another would be during a false alarm in which we thought Russia had fired nuclear weapons at us and refrained from firing back before being sure
It started on April 12th, 1861 and it ended on April 9th, 1865
White supremacy I would think.. I maybe be wrong. Sorry