Cash and carry was a policy requested by US President Franklin Delano Roosevelt at a special session of the United States Congress on September 21, 1939, subsequent to the outbreak of war in Europe. It replaced the Neutrality Acts of 1936.
The answer would be Asia. hope this answer really helps
The majority of American intervention in the foreign affairs occurred during the Cold War (this is your answer). Latin America was a frequent hotspot for activity as well especially towards the latter half of the Cold War with Fidel Castro's rise to power in Cuba.
Null- having no legal or binding force
Perry approached Japan in a somewhat threatening manner. He sought after them with a navy vessel at his side and basically told them to open their trade relations or else. =)