It was easy for the Muslim army of the Arabs to conquer much of persia and parts of the Byzantium empire because bothe the persian and the Byzantium army were weak due to years of fighting among themselves. The Arabs did not have to face any tough resistance from either the Persian or the Byzantium army. During the first century, the byzantium army did not like fighting open battles and they mostly were in the defensive. Although during 740 the Byzantium army came out for open fighting with the arabs, but still they were battered with heavy artilerry by the Arab army.
Answer:
The two superpowers involved in the Cold War are United States and the Soviet Union.
Explanation:
The explanation is that's history.
The difference is 100 years there were 6 units and today there are 3,200 units. I hope this helps you :]<span />
Manifest Destiny
John O'Sullivan coined the phrase "Manifest Destiny" to describe what he saw as the God-appointed duty of the United States to expand across the North American continent and to lead the world by the example of its values. O'Sullivan was editor of the <em>Democratic Review</em> and of the <em>New York Morning News</em> when editorials in both publications (in July 1845) put forth arguments for annexing Texas and the Oregon Territory. US public policy in the years that followed did essentially pursue the sort of territorial goals O'Sullivan had described, even if not always with his same spiritual ideology in mind.