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PART I⁠—ORGANIZATION AND GENERAL MILITARY POWERS — Front Matter

Chap.Sec.
1.Definitions, Rules of Construction, Cross References, and Related Matters101
2.Department of Defense111
3.General Powers and Functions121
4.Office of the Secretary of Defense131
5.Joint Chiefs of Staff151
6.Combatant Commands161
7.Boards, Councils, and Committees171
8.Defense Agencies and Department of Defense Field Activities191
9.Defense Budget Matters221
9A.Audit240a
11.Reserve Components261
12.The Militia246
13.Insurrection251
14.Arming of American Vessels261
15.Military Support for Civilian Law Enforcement Agencies271
16.Security Cooperation301
19.Cyber and Information Operations Matters391
20.Humanitarian and Other Assistance401
21.Department of Defense Intelligence Matters421
22.National Geospatial  -  Intelligence Agency441
23.Miscellaneous Studies and Reports480
24.Nuclear Posture491
25.Electromagnetic Warfare500

Editorial Notes

Amendments

2025⁠—Pub. L. 119–60, div. A, title XVII, § 1701(a)(2), Dec. 18, 2025, 139 Stat. 1207, substituted “Electromagnetic Warfare” for “Electronic Warfare” in item for chapter 25.

2023⁠—Pub. L. 118–31, div. A, title XVI, § 1682(b), Dec. 22, 2023, 137 Stat. 617, added item for chapter 25.

2022⁠—Pub. L. 117–263, div. A, title X, § 1081(e)(2), Dec. 23, 2022, 136 Stat. 2798, substituted “Definitions, Rules of Construction, Cross References, and Related Matters” for “Definitions” in item for chapter 1. Amendment was made pursuant to operation of section 102 of this title.

2021⁠—Pub. L. 117–81, div. A, title X, § 1081(a)(1), Dec. 27, 2021, 135 Stat. 1919, struck out second item for chapter 19 “Cyber Matters”.

Pub. L. 116–283, div. A, title X, § 1081(a)(1), Jan. 1, 2021, 134 Stat. 3870, added second item for chapter 19.

2019⁠—Pub. L. 116–92, div. A, title XVI, § 1631(a)(2)(B), title XVII, § 1731(a)(1), Dec. 20, 2019, 133 Stat. 1742, 1812, substituted “240a” for “251” in item for chapter 9A and “Cyber and Information Operations Matters” for “Cyber Matters” in first item for chapter 19.

2017⁠—Pub. L. 115–91, div. A, title X, § 1002(a)(2), Dec. 12, 2017, 131 Stat. 1537, added item for chapter 9A.

2016⁠—Pub. L. 114–328, div. A, title XII, § 1241(o)(1), Dec. 23, 2016, 130 Stat. 2512, redesignated item for chapter 13 “The Militia” as 12 and substituted “246” for “311”, redesignated item for chapter 15 “Insurrection” as 13 and substituted “251” for “331”, redesignated item for chapter 17 “Arming of American Vessels” as 14 and substituted “261” for “351”, redesignated item for chapter 18 “Military Support for Civilian Law Enforcement Agencies” as 15 and substituted “271” for “371”, and added item for chapter 16.

2015⁠—Pub. L. 114–92, div. A, title X, § 1081(a)(1), Nov. 25, 2015, 129 Stat. 1000, substituted “Cyber Matters” for “Cyber matters” in first item for chapter 19.

2014⁠—Pub. L. 113–291, div. A, title XVI, § 1632(d), Dec. 19, 2014, 128 Stat. 3640, added first item for chapter 19.

2013⁠—Pub. L. 113–66, div. A, title X, § 1091(a)(1), Dec. 26, 2013, 127 Stat. 875, substituted “Nuclear Posture” for “Nuclear posture” in item for chapter 24.

Pub. L. 112–239, div. A, title X, § 1031(b)(2), Jan. 2, 2013, 126 Stat. 1918, added item for chapter 24.

2008⁠—Pub. L. 110–181, div. A, title X, § 1068(a)(4)(B), Jan. 28, 2008, 122 Stat. 326, substituted “Insurrection” for “Enforcement of the Laws to Restore Public Order” in item for chapter 15.

2006⁠—Pub. L. 109–364, div. A, title X, § 1076(a)(4)(A), Oct. 17, 2006, 120 Stat. 2405, substituted “Enforcement of the Laws to Restore Public Order” for “Insurrection” in item for chapter 15.

2004⁠—Pub. L. 108–375, div. A, title X, § 1084(d)(1), Oct. 28, 2004, 118 Stat. 2061, substituted “480” for “481” in item for chapter 23.

2003⁠—Pub. L. 108–136, div. A, title IX, § 921(d)(8), Nov. 24, 2003, 117 Stat. 1569, substituted “Geospatial-Intelligence” for “Imagery and Mapping” in item for chapter 22.

1997⁠—Pub. L. 105–85, div. A, title X, § 1073(a)(1), Nov. 18, 1997, 111 Stat. 1900, substituted “481” for “471” in item for chapter 23.

1996⁠—Pub. L. 104–201, div. A, title XI, § 1123(a)(2), Sept. 23, 1996, 110 Stat. 2688, substituted “National Imagery and Mapping Agency” for “Miscellaneous Studies and Reports” and “441” for “451” in item for chapter 22 and added item for chapter 23.

1994⁠—Pub. L. 103–337, div. A, title V, § 554(a)(2), Oct. 5, 1994, 108 Stat. 2773, added item for chapter 22.

1991⁠—Pub. L. 102–190, div. A, title X, § 1002(a)(2), Dec. 5, 1991, 105 Stat. 1455, substituted “Defense Budget Matters” for “Regular Components” and inserted “221” in item for chapter 9.

1988⁠—Pub. L. 100–456, div. A, title XI, § 1104(b), Sept. 29, 1988, 102 Stat. 2046, substituted “Support for” for “Cooperation With” and “Agencies” for “Officials” in item for chapter 18.

1987⁠—Pub. L. 100–180, div. A, title III, § 332(c), Dec. 4, 1987, 101 Stat. 1080, substituted “Humanitarian and Other Assistance” for “Humanitarian and Civic Assistance Provided in Conjunction With Military Operations” in item for chapter 20.

Pub. L. 100–26, § 9(b)(4), Apr. 21, 1987, 101 Stat. 287, added item for chapter 21.

1986⁠—Pub. L. 99–661, div. A, title III, § 333(a)(2), Nov. 14, 1986, 100 Stat. 3859, added item for chapter 20.

Pub. L. 99–433, title VI, § 605(a), Oct. 1, 1986, 100 Stat. 1075a, added items for chapters 2 and 6, inserted “and Functions” in item for chapter 3, substituted “Office of the Secretary of Defense” for “Department of Defense” in item for chapter 4, substituted “151” for “141” as section number in item for chapter 5, reenacted item for chapter 7 without change, and inserted “and Department of Defense Field activities” in item for chapter 8.

1982⁠—Pub. L. 97–269, title V, § 501(b), Sept. 27, 1982, 96 Stat. 1145, added item for chapter 8.

1981⁠—Pub. L. 97–86, title IX, § 905(a)(2), Dec. 1, 1981, 95 Stat. 1116, added item for chapter 18.

1962⁠—Pub. L. 87–651, title II, § 203, Sept. 7, 1962, 76 Stat. 519, added item for chapter 4.