In 1965, the United States launched Operation Rolling Thunder, which involved

A. using aircraft to bomb North Vietnam.

B. using American ships to shell the city of Hanoi.

C. sending half a million troops to South Vietnam.

D. taking over the defense against the Viet Cong.

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.

the correct answer is:   the domino theory states that if one country in a region came under the influence of communism, then the surrounding countries would follow in a domino effect.

chamberlains goal was to stop the uk ad germany from fighting which he went to hitler and asked if he could sign a peace treaty between germany and the uk