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The constantly changing weather and climate, the endless geopolitical struggle, the global spread of infectious diseases, the disinformation campaigns led by the major political players, and the ever-increasing levels of uncertainty are just a few of the factors contributing to the ongoing shift in the security environment. The role of the military as a guarantee of sovereignty reaches new peaks. In every conflict fought since the end of World War 2, the use of small tactical units for achieving operational goals is becoming greater. The paper attempts to demonstrate what a modern small unit is comprised of and the processes that take place in it. The main method used is the systems approach. The results show the links between the personnel, material resources, and training, how they interact with each other, and the effects of the environment in which the unit functions. Keywords: tactical unit, system, uncertainty, military
Vladimir Statev (Mon,) studied this question.