For the first time, everything about the army of Charles XII! The Great Northern War of 1700–1721. became a turning point in the history of many countries and peoples of Northern and Eastern Europe. For Russia, its result was the return of lands captured by Sweden in the past, securing access to the Baltic Sea and becoming a great world power. In addition, the military art of the Russian regular army was formed due to the fact that from the very beginning it had to confront the best European army of that time - the Swedish army of King Charles XII, one of the largest commanders of the 18th century, whose state was the second largest in Europe, second only to Russia. However, in Russian literature, the art of war and the organization of the Swedish army during its golden age received virtually no coverage. The book by Doctor of Historical Sciences A.V. Bespalova shows in detail the development of the military art of the army of Charles XII and highlights little-studied episodes of its military path in Poland, the Baltic states, Ukraine and Russia. The reader learns about the command system of the Swedish army and its senior command; development of a system of recruitment, supply and strengthening of discipline; strategy and tactics of the Swedish king; his guards; Swedish artillery in the Northern War; uniforms and banners of the army of Charles XII. The publishing layout is saved in PDF A4 format.