How did the kennedy administration know that the soviet union was putting ballistic missiles into cuba?

Which of the following was a difficulty faced by the ottoman empire in the 1700s and 1800s?   a.  financial independence      b.  lack of trained artisans      c.  refusal to trade with other nations      d.  rebelling ethnic groups

Explain how social darwinism impact imperialism.

How can we stop u.s. military drone strikes from hurting innocent people