Establishment and composition of the armed forces of the Federation

Section 217(2)(b) · 1999 Constitution (2004 edition)

What Constitution says

(b) maintaining its territorial integrity and securing its borders from violation on land, sea, or air;

This is the 1999 Constitution as published in 2004. Later amendments aren't included yet, so a section may have changed since.

Official Gazette · CFRN 1999 official PDF · printed page 97. Original document