What term describes all the actions a nation takes in dealing with other countries of the world?
a. foreign affairs
b. isolationism
c. foreign policy
d. domestic affairs

The term which describes all the actions a nation takes in dealing with other countries of the world is a) foreign affairs. Foreign affairs is often defined as foreign policy, however, although there is a difference. Foreign affairs can be described as "matters having to do with international relations and with the interests of the home country in foreign countries."

Photographs of soviet missiles from 1950