“…In the research of Frederick, B., (Shurkin, M., Gordon IV, J., Frederick, B., & Pernin, C.G.) the following types of military service are distinguished: 1) regular military service; 2) military service by conscription during mobilisation, for a special period; 3) military service under the contract of privates; 4) military service under the contract of sergeants and sergeants; 5) military service (training) of cadets of higher military educational institutions, as well as higher educational institutions having military institutes, faculties of military training, departments of military training, departments of military training (hereinafter -higher military educational institutions and military educational institutions) [14].…”