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**UNITED STATES MILITARY STRUCTURE CHART** Here is a high-resolution image of the military structure: **Joint Chiefs of Staff** * Chairman of the Joint Chiefs of Staff (CJCS) * Vice Chairman of the Joint Chiefs of Staff (VJCS) **Department of Defense (DoD)** * **Army** + Secretary of the Army + Chief of Staff of the Army (CSA) + Vice Chief of Staff of the Army (VCSA) + Sergeant Major of the Army (SMA) + Army Staff + Army National Guard + Army Reserve * **Navy** + Secretary of the Navy + Chief of Naval Operations (CNO) + Vice Chief of Naval Operations (VCNO) + Master Chief Petty Officer of the Navy (MCPON) + Navy Staff + Navy Reserve * **Air Force** + Secretary of the Air Force + Chief of Staff of the Air Force (CSAF) + Vice Chief of Staff of the Air Force (VCSAF) + Chief Master Sergeant of the Air Force (CMSAF) + Air Staff + Air National Guard + Air Force Reserve * **Marine Corps** + Secretary of the Navy + Commandant of the Marine Corps (CMC) + Assistant Commandant of the Marine Corps (ACMC) + Sergeant Major of the Marine Corps (SMMC) + Marine Corps Staff + Marine Corps Reserve * **Coast Guard** + Secretary of Homeland Security + Commandant of the Coast Guard (CMC) + Vice Commandant of the Coast Guard (VCMC) + Master Chief Petty Officer of the Coast Guard (MCPOCG) + Coast Guard Staff + Coast Guard Reserve **Chain of Command** 1. **Joint Chiefs of Staff** * Chairman of the Joint Chiefs of Staff (CJCS) * Vice Chairman of the Joint Chiefs of Staff (VJCS) 2. **Department of Defense (DoD)** * Secretary of Defense (SECDEF) * Deputy Secretary of Defense (DEPSECDEF) 3. **Military Departments** * Army: Secretary of the Army, Chief of Staff of the Army (CSA) * Navy: Secretary of the Navy, Chief of Naval Operations (CNO) * Air Force: Secretary of the Air Force, Chief of Staff of the Air Force (CSAF) * Marine Corps: Secretary of the Navy, Commandant of the Marine Corps (CMC) * Coast Guard: Secretary of Homeland Security, Commandant of the Coast Guard (CMC) 4. **Operational Commands** * Geographic Combatant Commands (GCCs) * Functional Combatant Commands (FCCs) 5. **Tactical Units** * Army: Divisions, Brigades, Battalions, Companies * Navy: Fleets, Task Forces, Squadrons, Ships * Air Force: Wings, Groups, Squadrons, Flights * Marine Corps: Divisions, Regiments, Battalions, Companies * Coast Guard: Districts, Sectors, Stations, Cutters **Rank Structure** * **Commissioned Officers** + O-1: Second Lieutenant (2LT), Ensign (ENS), Second Lieutenant (2d Lt) + O-2: First Lieutenant (1LT), Lieutenant Junior Grade (LTJG), First Lieutenant (1st Lt) + O-3: Captain (CPT), Lieutenant (LT), Captain (Capt) + O-4: Major (MAJ), Lieutenant Commander (LCDR), Major (Maj) + O-5: Lieutenant Colonel (LTC), Commander (CDR), Lieutenant Colonel (Lt Col) + O-6: Colonel (COL), Captain (CAPT), Colonel (Col) + O-7: Brigadier General (BG), Rear Admiral (Lower Half) (RDML), Brigadier General (BGen) + O-8: Major General (MG), Rear Admiral (RADM), Major General (Maj Gen) + O-9: Lieutenant General (LTG), Vice Admiral (VA), Lieutenant General (Lt Gen) + O-10: General (GEN), Admiral (ADM), General (Gen) * **Warrant Officers** + W-1: Warrant Officer 1 (WO1) + W-2: Chief Warrant Officer 2 (CW2) + W-3: Chief Warrant Officer 3 (CW3) + W-4: Chief Warrant Officer 4 (CW4) + W-5: Chief Warrant Officer 5 (CW5) * **Enlisted Personnel** + E-1: Private (PVT), Seaman Recruit (SR), Airman Basic (AB), Private (Pvt) + E-2: Private Second Class (PV2), Seaman Apprentice (SA), Airman (AMN), Private Second Class (PFC) + E-3: Private First Class (PFC), Seaman (SN), Airman First Class (A1C), Private First Class (PFC) + E-4: Specialist/Corporal (SPC/CPL), Petty Officer Third Class (PO3), Senior Airman (SrA), Corporal (Cpl) + E-5: Sergeant (SGT), Petty Officer Second Class (PO2), Staff Sergeant (SSG), Sergeant (Sgt) + E-6: Staff Sergeant (SSG), Petty Officer First Class (PO1), Technical Sergeant (TSG), Staff Sergeant (SSG) + E-7: Sergeant First Class (SFC), Chief Petty Officer (CPO), Master Sergeant (MSgt), Gunnery Sergeant (GySgt) + E-8: Master Sergeant/First Sergeant (MSG/1SG), Senior Chief Petty Officer (SCPO), Senior Master Sergeant (SMSG), Master Chief Petty Officer (MCPO) + E-9: Sergeant Major (SGM), Command Sergeant Major (CSM), Command Master Chief Petty Officer (CMCPO), Chief Master Sergeant (CMS)