What do you mean by guarding the border?

Frontier defense refers to being stationed in border areas to safeguard the border security of the country. Frontier defense usually refers to the deployment of troops and defense facilities in border areas in order to defend the national territory and border security and prevent the invasion and destruction of hostile forces.

Historically, border defense is one of the important means to safeguard national security. In ancient times, due to inconvenient transportation, poor communication and backward technology, border areas often became the breakthrough point for hostile forces to invade, so it was necessary to deploy a large number of troops and defense facilities in these areas to ensure national security. In modern times, although the development of science and technology and the complexity of international relations have greatly changed the forms and means of border defense, border defense is still an important part of national security.

There are many forms of frontier defense, including land defense, coastal defense and air defense. Land border defense is the most common form. Usually, army troops and border guards are deployed in border areas, fortifications are built and surveillance facilities are set up. Maritime frontier defense is to deploy naval forces and coast guards in coastal areas to defend maritime communication lines and maritime resources. Air border defense is to deploy air and air defense forces in border areas to safeguard air safety and national airspace.

Specific measures of ancient frontier defense;

1. Building city walls: Building city walls in border areas can be used as fortifications to resist foreign attacks. The famous Great Wall is a typical example of China's ancient frontier consolidation.

2. Set up checkpoints: set up checkpoints in important traffic arteries and border areas to monitor the passage of the border. Pass is generally equipped with gates, moats and other defense facilities to protect border security.

3. Construction of beacon towers: Beacon towers can be used as early warning and warning systems. Once you find the enemy, you can immediately light the beacon and give an alarm.

4. Garrison: Garrison troops in border areas and set up military strongholds can effectively prevent enemy invasion and protect border security.

5. Immigration to the border area: Moving the population to the border area can increase the population and labor force in the border area and provide some military support.