At the current stage of planning civil defense measures, the fact that protective structures designed to protect people from the damaging factors of modern weapons may not always be ready to receive and provide full-fledged (regulatory) protection to those sheltered is not fully taken into account, and in conditions of possible evacuation measures, due, for example, to an armed conflict outside the borders of the subject of the Russian Federation, the number of places in such structures will not allow to shelter the increased number of people. The paper considers an algorithm of actions describing a possible general principle of organizing the construction and equipment of shelters of the simplest type, with subsequent improvementof their protective properties, to provide additional protection for the personnel of these units (formations), as well as the civilian population from the damaging factors of a potential enemy's weapons. The algorithm considered in the publication is assumed to be an organic addition to existing methods of protection in modern armed conflicts, takes into account the actual features of such conflicts, and also represents part of compensatory measures, the expediency of which is due to the possibility of circumstances that exclude the use of existing methods.