6 U.S. Code § 456
6 U.S. Code § 456 is about Military activities. It is under Part H (Miscellaneous Provisions) of Subchapter VIII (Coordination With Non-federal Entities; Inspector General; United States Secret Service; Coast Guard; General Provisions) of Chapter 1 (Homeland Security Organization) of Title 6 (Domestic Security) of the Code.
Nothing in this chapter shall confer upon the Secretary any authority to engage in warfighting, the military defense of the United States, or other military activities, nor shall anything in this chapter limit the existing authority of the Department of Defense or the Armed Forces to engage in warfighting, the military defense of the United States, or other military activities.