In 1959? J.F.K opposed Castro's rule in Cuba.
I ek know but I will say 1, 3 and 4
The proposition that he suggested was that the states should unite into a single union. What inspired him to propose this was the idea on how the Iroquois nation united five different Native-American nations under a single banner into a single union. Nobody supported this but eventually they started supporting the idea.
Some causes of the Spanish-American war were that Cuba rebelled against Spain and America desired to protect its investments in Cuba. Some effects were the Americas prepared to fire on the Spanish ships, Cuba received independence, and men died while legendary figures emerged.