The 16th and 17th century was a period of significant change in the character of war. The drivers accounting for these changes were not all based in military reforms, despite Western Europe being engaged almost continuously in war. While tactical applications is interesting, it was the beginnings of some profound changes in the development of warfare; the professional military, the standing army, scale of warfare and subsequent emergence of the state (Crown) owning the monopoly on violence and the arrival of proper naval forces.