A

The Eisenhower Doctrine outlines that any Middle East country had the right to ask for the American economic support, as well as the assistance of the military in case of feeling threatened by other states.

Explanation:

The Doctrine was adopted in 1957 when Dwight D. Eisenhower was the President of the US. This Doctrine represented the primary aspect of the country’s foreign policy at that time. The issue was that the period was characterized by an unstable situation in the Middle East and tensed relationships with the Soviet Union. The point is that the administration of Eisenhower had a strong belief that all nations were divided into two groups, which were the ‘free world’ or the ‘Soviet communist bloc.’ In such a way, the US needed to respond to the vast expansion of communism. At that time, the policy of Massive Retaliation came into power. This policy implied that America was ready to use atomic weapons in case its allies were under attack.

Besides the reaction to the communist expansion, the US was aware of the oil reserves in the Middle East. Consequently, with the active voting in Congress, the Eisenhower Doctrine was implemented. However, not all of the Middle East countries actively accepted this American foreign policy. Such countries as Syria and Egypt were getting strong support from the Soviet Union, and, therefore, were opposing the Doctrine. It is also critical to mention that, in the Eisenhower Doctrine, the threat of the Soviet Union was directly mentioned. It stated that the policy aimed to preserve and protect the integrity and independence of the states that experience aggression from international communism. Thus, the significance of this policy lay in the fact that the US aimed to protect its interests in the Middle East and reduce the growing impact of Soviet communism.