What is illegal immigration and how does it affect a country? Suggest 3 ways in which Pakistan can address or improve the problem of illegal migration

Illegal immigration is when people from another country cross the border to live there without any permission.

Explanation:

1. Pakistan can employ more border security guards

2. Pakistan can improve the border fence that seperates its country from others.

3. Pakistan can put signs on the border to discourage people from illegally entering Pakistan.