How did Thomas Jefferson dealt with other nations in order to benefit or protect the United States

In shifting to a defense policy based upon the concept of "flexible response," president kennedy was indicating that he had grave doubts about thevalue of which previous defense policy? a massive retaliationb collective securityc containmentd air power

Why do many scientists suppose the land bridge theory of migration?

The stamp act: was passed by parliament in 1776 caused the boston massacre was the first direct tax levied by england on the colonists sparked protest in the colonies