Section 33. Functions - Administrative Code of 1987

(1) Uphold the sovereignty, support the Constitution, and defend the territory of the Republic of the Philippines against all enemies, foreign and domestic;

(2) Promote and advance the national aims, goals, interests and policies;

(3) Plan, organize, maintain, develop and deploy its regular and citizen reserve forces for national security; and

(4) Perform such other functions as may be provided by law or assigned by higher authorities.