The correct answer is <span>Invasion of Cambodia
Although the war had been localized to Vietnam, in 1970 the Southern Vietnamese army with the help of the United States troops had invaded into Cambodia who was also having the same problems as the Vietnamese, the communists were fighting those against communism, so Vietnamese people decided to join the fight, which stirred a new round of protests.</span>
The right answer is Darius iii was the king of Persia. As the ancient knowledge tells, Darius III was the most important opponent of Alexander the great, and one of the most achievements of his conquests. The Persian kingdom was an immense empire, established two centuries before and extending from portions in North Africa, Mediterranean, India and central Asia. Even the odds against Alexander the great, he succeeded in defeating the Persian army during three major combats.
The correct answer is Harappa. Out of all the given options, this civilization is the only one that developed in the Indus Valley, todays Afghanistan, Pakistan and north India. City of Harappa was one of the cradles of the early civilization.
