Serving on the border. How does cooperation between Belarus and Russia affect security aspects?

Serving on the Border. Our country pays special attention to the border security of the Union State. The sections of the state border are being fortified with new modern checkpoints set up, housing for servicemen built, and border infrastructure upgraded. How the close interaction between Belarus and Russia today affects the security aspects. Source: ATN TV News Agency https://www.youtube.com/c/atnbtrc