Monitoring borders is very important for countries for several reasons: 1. National security: Monitoring borders helps prevent the entry of potential threats such as terrorists, criminals, or illegal weapons into the country. It allows the authorities to maintain the safety and security of their citizens by identifying and apprehending individuals who pose a risk to national security. 2. Immigration control: Borders act as entry and exit points for individuals coming into or leaving a country. Monitoring borders enables the implementation of immigration policies, such as visa regulations and document verification, to manage and regulate the flow of people.