In 1805, 10 pulks of Orel (Ural) Cossacks were added, and in 1807 1 pulk each of Evpatorski, Perekopski, Simferopolsi, and Feodorsiiski Cossacks (per Nafziger), plus a pulk of Crimean Tartars. These were followed by the Stavropol Kalmuks (10 sotnias). The Bug Cossacks were raised in 1803 (3 Pulks), as well as the Black Sea Cossacks (10 pulks each foot and mounted), and Orenburg Cossacks (1 pulk of 10 sotnias). Period descriptions leave little doubt that regulation dress was the exception rather than the rule when these rapacious light cavalrymen took to the field on campaign. Over the course of the Napoleonic wars, the regulation dress of the various other Cossacks generally came to more closely resemble those of the Don Cossacks. The Ataman's regiment could be doubled in wartime. There were 80 regiments (called "pulks") each composed of 5 squadrons (or "sotnias") of 100 men, thus yielding 500 men per regiment, at least theoretically. The most numerous of the Cossacks by far were the Don Cossacks. The regulation dress of the Cossacks (and other irregular forces) during the Naopleonic Wars is described in detail in Viskovatov volume 18, as translated by Mark Conrad this volume also has a surprisingly large and detailed amount of information about the standards and flags of the Cossacks, Oplochenie, etc. Certainly nothing shouts out "The Russians are Coming" like a swarm of Cossacks! These notorious irregular horsemen were the border guards of the Russian Empire, stationed in territories ("voiskos") bordereing the Turks or Eastern tribes.