The regular Russian military was created by Peter the Great. Before him, the Muscovite army was a patchwork of feudal levies, uncontrollable, wild Cossack allies and a semi-regular, but quite small military organization of Streltsy (Musketmen) - the Moscow city guard. Peter decided to ditch this ragtag army and started to build a modern (by his times) regular army with a chain of command. Was skipped since time immemorial.