Any state on our planet must very clearly determine its security. The most correct decision of the country's leaders is to allocate large sums of money for the maintenance of the internal army and state structures, which will monitor the quiet existence of their sovereignty and the peaceful life of their citizens. The concept of national security of any country is that every resident is sure that he is not in danger, at least from other states. If in the world they see that you have a rather powerful army, and special structures are fully functioning, no one dares interfere with the calm and measured life of your citizens.
In addition, the concept of national security often preserves calm within the country and prevents possible chaos among people. Indeed, fear for one’s life and health arises only because the country does not organize a normal security system. That is, if a person begins to notice that at any moment another country can pay aggressive attention to the sovereignty of your state, then he will begin to worry. As a result, distrust of their officials and politicians arises. Citizens will want to change power. And in such an unstable situation, there is an even greater likelihood that the national security system can collapse only from the slightest military action by another state. To prevent this situation, politicians try to assure their citizens of the stability of their situation and the state of the whole country.
Many modern countries today have organized full-fledged educational institutions in which they train future employees of state security structures. It is noteworthy that the teaching staff of such universities consists mainly of current or former employees of such bodies. Specialists share their experience with students and prepare them for possible problems that they may encounter during their work. It is more difficult to enter such a university than a regular university, because some graduates will be sent to work abroad, where they will have to control the security of their state from within a potential enemy. Basically, the concept of national security is to prevent danger, not eliminate it. A potential adversary must understand that we know all his moves ahead and will be ready to make a return move, without having yet received the opponent’s move.
Certain activities of the state are fully aimed only at ensuring that the system of ensuring national security operates. This primarily concerns the provision of an army in which millions of soldiers are constantly present. These people can in an emergency help their state. For this they exist, and for this they are prepared. This is also the concept of national security. It is not in vain that every young man should serve in the army. After demobilization, the soldier is sent to the reserve, but until a certain age he remains as a combat unit for his country. Such people went through military school and possess army skills, which is why in a difficult situation they simply must defend the sovereignty of the state and the security of themselves. Thus, the country always has in stock the human factor. For example, if the composition of the regular army is 1 million people, then in an emergency this figure can grow to 5, or even 10 million combat-ready defenders of the homeland.