"From somewhere in Western Asia people of a fighting race began to move southward and eastward about 1900 BC. In the following two centuries the southbound arm of this great prehistoric pincer movement founded the nations of Hatti (known to us as the Hittites) and Mittanni, and imposed upon the indigenous people of the Aegean an aristocracy which Homer called the "brown-haired Achaeans", and which we refer to as the Myceneans, while part of it pressed on to overthrow the weak and divided government of the 14th Dynasty of Egypt, occupying that land for 200 years. The eastbound arm moved upon North-West India, crushing the militarily helpless but otherwise magnificent and powerful people of the Indus.Modern ethnography has dubbed this race "Indo-European", and they are in every sense the founders of the modem world. From them the Greeks and Romans are sprung, and most of the races of India as well as the Celts and the Teutonic peoples of the North; they are the ancestors of India and of every Western civilization. The reason for their success was their power in war, power based on a concept of fighting which in the second millennium BC was entirely new.This was the use of horses, not as cavalry in the accepted sense but drawing light chariots each carrying one or two armed men, a highly mobile armoured fighting vehicle. When these chariots were deployed in squadrons, acting together as disciplined corps, then the ancient formations of pedestrian spearmen were doomed."