regarded as simply vacant. However, this did not mean that conflict did not exist between the colonizers and local/native peoples. Greeks and Phoenicians also established colonies with the intent of regulating and expanding trade throughout the Mediterranean and Middle East. Another period of colonization in ancient times was during the Roman Empire. The Roman Empire conquered large parts of Western Europe, North Africa, and West Asia. In North Africa and West Asia, the Romans often conquered what they regarded as 'civilized' peoples. As they moved north into Europe, they mostly encountered rural peoples/tribes with very little in the way of cities. In these areas, waves of Roman colonization often followed the conquest of the areas. Many of the current cities throughout Europe began as Roman colonies, such as Cologne, Germany, originally called Colonia Claudia Ara Agrippinensium by the Romans, and the British capital city of London, which the Romans founded as Londinium. Middle Ages The decline and collapse of the Roman Empire saw (and was partly caused by) the large-scale movement of people in Eastern Europe and Asia. This is largely seen as beginning with nomadic horsemen from Asia (specifically the Huns) moving into the richer pasture land to the west, thus forcing the local people there to move further west and so on until eventually the Goths were forced to cross into the Roman Empire, resulting in continuous war with Rome which played a major role in the fall of the Roman Empire. During this period there were large-scale movements of people establishing new colonies all over western Europe. The events of this time saw the development of many of the modern-day nations of Europe like the Franks in France and Germany and the Anglo-Saxons in England. In West Asia, during Sassanid Empire, some Persians established colonies in Yemen and Oman. The Arabs also established colonies in Northern Africa, Mesopotamia, and the Levant, and remain the dominant majority to this day. The Vikings of Scandinavia also carried out a large-scale colonization. The Vikings are best known as raiders, setting out from their original homelands in Denmark, southern Norway, and southern Sweden, to pillage the coastlines of northern Europe. In time, the Vikings began trading and established colonies. The Vikings first came across Iceland and established colonies there before moving onto Greenland, where they briefly held some colonies. The Vikings launched an unsuccessful attempt at colonizing an area they called