When the u. s. discovered that soviets were placing nuclear missiles in cuba, americans worried because?

In ohio in 1872, the cleveland massacre was a violent labor dispute at standard oil refineries in cleveland. a takeover by standard oil of the refineries in cleveland. an attempt to stop standard oil from becoming a monopoly. a failed attempt by standard oil to take over other refineries.

How is the man caricatured to show that he is a responsible citizen

What was the result of the america's failure in vietnam