I think the answer is the Himalayas (let me know if i'm wrong)
Answer:
The greatest cause of Paleolithic migration was for the search for food. Food always came first, so Paleolithic people would migrate to simply search for food.
Spanish were critical of the US's interest. The publication of a letter from the Ambassador was one of the last events
as most of the posturing by the USA regarding Cuba was fostered by American corporate greed rather than a security threat