President eisenhower is warning the the united states to resist the influence of what group?

The correct answer is:

Military-industrial complex.

Explanation:

President Dwight Eisenhower warned the United States in 1961 as part of his last presidential address about the influence of the military-industrial complex (alliance made by the military industry of the government and the defense industry that creates arms, as a two-way benefit, ensuring that the product created will be purchased). The military-industrial complex had developed inevitably during World War II and the Cold War, and had gained a lot of influence in public policy and represented a potential danger to the institutions.

a is correct

hope this let me know if it is right

1. it was caused by feudalism

2. charlemagne used christianity as a major cornerstone for his rule. cloisters were built all over the empire to act as centers for the (re)population of the vast european wilderness.

3. the europeans feared the next raid every time chetak

i'm not so sure about #6. but i hope i you with the first 3.