D Modern Warfare The Thirty Year's War (1618-1648) marked the beginning of modern warfare. During that conflict King Gustav II Adolph of Sweden greatly improved army organization and discipline, introducing more powerful artillery and a lighter infantry musket that permitted soldiers to load and fire faster. During the wars of the English Revolution (1640-1649), Oliver Cromwell raised an extremely effective fighting force by conscription. Pay, supplies, and discipline were fixed by law, and for the …showed first 75 words of 1820 total…

…showed last 75 words of 1820 total…