Answer:
The nation faced serious economic and political problems. The country needed to build a new system of roads. They wanted to overthrow the president of the confederacy.
We started the Korean War to prevent the spread of Communism because we associated Communism with Russia and we didn't like Russia.
The Cuban Missile Crisis was Russia getting ballsy and really mad at us (Likely due to us having missiles in Turkey that could hit them)
And the Vietnam War was started for the same reason as the Korean War.
The 'Scramble for Africa' – the artificial drawing of African political boundaries among European powers in the end of the 19th century – led to the partitioning of several ethnicities across newly created African states. ... Despite their arbitrariness these boundaries endured after African independence.2356
The helped to investigate and it does seem like proper behavior for the FBI.