The article analyses the drawing of the Cossacks to the guard and defense of the borders in the North Caucasus in the period when the region was a part of the Russian empire. The dificulties faced during the organization of the cordon are shown. Fortiication buildings that were erected on a frontier line to provide for its reliable protection are examined. https://www.pomyslnaszycie.com/laguna-3hp-c-flux-cyclone-dust-collector-on-sale/