Even during the Renaissance after centuries of Dark Ages saw a rebirth in science and knowledge, warfare at this time did not leave the ancients behind. On the contrary, great commanders read Frontinus and Vegetius more than ever.

In 1534 King Francis I of France ordained his infantery to be organized in seven “legions” of 6000 men in each. The idea and the number was plucked from Roman sources. Francis and his advisers considered Rome and Greece as excellent examples for improving warfare. This however, one could say, was a result of the Renaissance culture, where everything ancient and antique came into fashion. Ancient pagan Gods saw daylight, ancient litterature were republished, buildings were constructed according to Roman pattern and so were warfare (Arnold T, "The Renaissance at War, 2001" pg. 54).

Francis dreamed of making his infantery into the disciplined and controlled armies of Caesar and Alexander, thus a time of experimenting with modern and ancient warfare took place. The 16th century was a period of sophisticated military men and booksih theorists, who tried to recreate both on paper and in reality the forms and discipline of the infantery armies of the ancient world.
Two of those reformers were the Nassau cousins and professional generals, William Louise and Maurice of Nassau. In 1594, William Louise fancied a new musketery fire-discipline after reading a description by the ancient author Aelian of Roman soldiers firing Javelins and sling-stones. He sent a letter to his cousin Maurice who took his thoughts seriously. Williams ideas became an essential part of a successfull new regulation drill for the Dutch Army. The Nassau cousins were much celebrated by contemporaries. Maurice was also inspired by his advisor Julius Lipsius, author of a 1595 analysis of the Roman Army (Arnold T, "The Renaissance at War, 2001" pg. 56-57).

Another work published at the same time was “Military Parallels” by an Italian named Francesco Patrici. His book was dedicated to the project of accomodating “the various customs and the regulations of the ancients” to modern firearms.
The perhaps first effort to reform infantry “al antica”, occured in 1513-14 when Bartolomeo d’Alviano tried to transform the armies of the Republic of Venice. Alvino proposed regular and standard infantry companies of 256 men, a perfect squareformation of sixteen ranks and sixteen files. In his proposals he used latin terms and titles(Arnold T, "The Renaissance at War, 2001" pg. 58). One must remember that the infantry reformers who looked back to the ancients, were searching for an overall improvment and discipline, not just tactics. The Renaissance world culture of soldiering was essentially mercenary. Paid units were usually hard to lead. It was the money which motivated men to fight and financial problems was a problem for rulers. The question was how to make men more connected with the loyalty of their nation than that of the gold. Here the legions of Rome seemed a perfect model. Roman virtue like devotion to the state was attractive to those ordering military affairs. Reformers wanted by other means more than a tactical scheme. They wanted a whole new militaty ethic(Arnold T, "The Renaissance at War, 2001" pg. 58-59).

The greatest military writer during the renaissance was Niccolo Machiavelli. Apart from his most famous work “Il Principe” (The Prince) written 1512-13, he wrote a treatise on war. “L’Arte della Guerra” (The Art of War) written 1520-21. It is written in a form of conversation which takes place in a Florentine garden. The maincharacter is Fabricio Colonna member of a noble family who served as a mercenary commander during the wars in Northern Italy. Machiavelli himself had during the years 1498-1512 been in charge of conductiong Florence’s war against Pisa. Machiavellis work however takes a lots of it’s theories and illustrations from the ancient world and are hoplessley out of date. His key propositionsm - underestimation of artillery, recommendation that pikes be supplemented with swords and buckler and his preference for citizen-soldiers instead of professionals – proved to be death wrong (Creveld. M, The Art of War, 2002, pg 68-73).