What is national defense?

National defense refers to the military activities carried out by the state to guard against and resist aggression, stop armed subversion and terrorists, and defend the sovereignty, unity, territorial integrity and security of the country, as well as political, economic, scientific, technological, diplomatic and educational activities related to the military.

Extended data:

Four types of national defense:

1, extended type. In order to safeguard their global interests, big countries pursue hegemonism, invade, subvert and infiltrate other countries.

2. Self-defense type. We should rely mainly on our own strength to win extensive international support, prevent foreign enemies from invading and safeguard our own security. Adhere to the peaceful and independent national defense policy, never expand, and never allow other countries to occupy an inch of our country.

3, alliance type. In the form of alliance, unite with other countries to make up for their own strength. It can be divided into expansion and self-defense, and it can also be divided into monistic and pluralistic alliances. The former has a big country as the leader.

4. Neutral type. Small and medium-sized developed countries strictly abide by the peaceful and neutral national defense policy, and formulate the overall national defense strategy and national defense system including soldiers and people. For example, Switzerland.

References:

Baidu encyclopedia-national defense