First, the Spanish had the advantage of supe-
rior weaponry. Secondly, Cortes was able to enlist the help of vary native groups. Thirdly, an the most important, the natives could do little to stop the invisible warrior that marched alongside the Spaniards-disease. Measles, mumps, smallpox, and typhus were just some of the diseases Europeans were to bring with them to the America's.