| Operations in Charleston Harbor [April 1861] | Lower Seaboard | 1861 | 1 |
| Blockade of the Chesapeake Bay [May-June 1861] | Eastern | 1861 | 3 |
| Operations in Western Virginia [June-December 1861] | Eastern | 1861 | 7 |
| Operations to Control Missouri [June-October 1861] | Trans-Mississippi | 1861 | 8 |
| Manassas Campaign [July 1861] | Eastern | 1861 | 3 |
| Blockade of the Carolina Coast [August 1861] | Eastern | 1861 | 1 |
| Operations in Eastern Kentucky [September-December 1861] | Western | 1861 | 4 |
| Blockade of the Potomac River [October 1861-January 1862] | Eastern | 1861 | 1 |
| McClellan's Operations in Northern Virginia [October-December 1861] | Eastern | 1861 | 2 |
| Operations of the Gulf Blockading Squadron [October 1861] | Lower Seaboard | 1861 | 1 |
| Operations at the Ohio and Mississippi River Confluence [November 1861] | Western | 1861 | 1 |
| Operations in the Indian Territory [November-December 1861] | Trans-Mississippi | 1861 | 3 |
| Operations in Northeast Missouri [December 1861] | Trans-Mississippi | 1861 | 2 |
| Jackson's Operations Against the B&O Railroad [January 1862] | Eastern | 1862 | 1 |
| Offensive in Eastern Kentucky [January 1862] | Western | 1862 | 2 |
| Burnside's North Carolina Expedition [February-June 1862] | Eastern | 1862 | 5 |
| Federal Penetration up the Cumberland and Tennessee Rivers [February-June 1862] | Western | 1862 | 4 |
| Joint Operations Against New Madrid, Island No. 10, and Memphis [February-June 1862] | Western | 1862 | 2 |
| Sibley's New Mexico Campaign [February-March 1862] | Trans-Mississippi | 1862 | 2 |
| Jackson's Valley Campaign [March-June 1862] | Eastern | 1862 | 7 |
| Pea Ridge Campaign [March 1862] | Trans-Mississippi | 1862 | 1 |
| Peninsula Campaign [March-July 1862] | Eastern | 1862 | 16 |
| Expedition to, and Capture of, New Orleans [April-May 1862] | Lower Seaboard | 1862 | 2 |
| Operations Against Fort Pulaski [April 1862] | Lower Seaboard | 1862 | 1 |
| Confederate Heartland Offensive [June-October 1862] | Western | 1862 | 5 |
| Operations Against Charleston [June 1862] | Lower Seaboard | 1862 | 2 |
| Operations Against Tampa [June-July 1862] | Lower Seaboard | 1862 | 1 |
| Operations on the White River [June 1862] | Trans-Mississippi | 1862 | 1 |
| Operations Against Baton Rouge [July-August 1862] | Lower Seaboard | 1862 | 2 |
| Operations Near Cache River, Arkansas [July 1862] | Trans-Mississippi | 1862 | 1 |
| Northern Virginia Campaign [August 1862] | Eastern | 1862 | 6 |
| Operations North of Boston Mountains [August-November 1862] | Trans-Mississippi | 1862 | 6 |
| Operations to Suppress the Sioux Uprising [August-September 1862] | Trans-Mississippi | 1862 | 2 |
| Expedition to St. John's Bluff [September-October 1862] | Lower Seaboard | 1862 | 1 |
| Iuka and Corinth Operations [September-October 1862] | Western | 1862 | 3 |
| Maryland Campaign [September 1862] | Eastern | 1862 | 4 |
| Operations to Blockade the Texas Coast [September 1862-January 1863] | Trans-Mississippi | 1862 | 2 |
| Operations in LaFourche District [October 1862] | Lower Seaboard | 1862 | 1 |
| Fredericksburg Campaign [November-December 1862] | Eastern | 1862 | 1 |
| Prairie Grove Campaign [November 1862] | Trans-Mississippi | 1862 | 2 |
| Forrest's Expedition into West Tennessee [December 1862-January 1863] | Western | 1862 | 2 |
| Goldsboro Expedition [December 1862] | Eastern | 1862 | 3 |
| Operations Against Galveston [December 1862-January 1863] | Trans-Mississippi | 1862 | 1 |
| Operations Against Vicksburg [December 1862-January 1863] | Western | 1862 | 2 |
| Stones River Campaign [December 1862-January 1863] | Western | 1862 | 2 |
| Expedition from Camp Douglas, Utah, to Cache Valley, Idaho [January 1863] | Pacific Coast | 1863 | 1 |
| Marmaduke's First Expedition into Missouri [January 1863] | Trans-Mississippi | 1863 | 2 |
| Middle Tennessee Operations [February-April 1863] | Western | 1863 | 5 |
| Cavalry Operations along the Rappahannock [March 1863] | Eastern | 1863 | 1 |
| Grant's Operations Against Vicksburg [March-July 1863] | Western | 1863 | 11 |
| Longstreet's Tidewater Operations [March-April 1863] | Eastern | 1863 | 4 |
| Naval Attacks on Fort McAllister [March 1863] | Lower Seaboard | 1863 | 1 |
| Chancellorsville Campaign [April-May 1863] | Eastern | 1863 | 3 |
| Marmaduke's Second Expedition into Missouri [April-May 1863] | Trans-Mississippi | 1863 | 2 |
| Operations Against the Defenses of Charleston [April-September 1863] | Lower Seaboard | 1863 | 6 |
| Operations in West Louisiana [April 1863] | Lower Seaboard | 1863 | 3 |
| Streight's Raid in Alabama and Georgia [April 1863] | Western | 1863 | 1 |
| Siege of Port Hudson [May-July 1863] | Lower Seaboard | 1863 | 2 |
| Gettysburg Campaign [June-July 1863] | Eastern | 1863 | 10 |
| Operations to Control Indian Territory [June-September 1863] | Trans-Mississippi | 1863 | 3 |
| Taylor's Operations in West Louisiana [June-September 1863] | Lower Seaboard | 1863 | 4 |
| Tullahoma or Middle Tennessee Campaign [June 1863] | Western | 1863 | 1 |
| Morgan's Raid in Kentucky, Indiana, and Ohio [July 1863] | Western | 1863 | 3 |
| Operations Against the Sioux in North Dakota [July 1863] | Trans-Mississippi | 1863 | 4 |
| Chickamauga Campaign [August-September 1863] | Western | 1863 | 3 |
| Quantrill's Raid into Kansas [August 1863] | Trans-Mississippi | 1863 | 1 |
| Advance on Little Rock [September-October 1863] | Trans-Mississippi | 1863 | 2 |
| East Tennessee Campaign [September-October 1863] | Western | 1863 | 2 |
| Operations to Blockade the Texas Coast [September 1863] | Trans-Mississippi | 1863 | 1 |
| Bristoe Campaign [October-November 1863] | Eastern | 1863 | 5 |
| Expedition to Hillsboro River [October 1863] | Lower Seaboard | 1863 | 1 |
| Occupation of Indian Territory North of the Arkansas River [October 1863] | Trans-Mississippi | 1863 | 1 |
| Reopening the Tennessee River [October 1863] | Western | 1863 | 1 |
| Averell's Raid on the Virginia & Tennessee Railroad [November 1863] | Eastern | 1863 | 1 |
| Chattanooga-Ringgold Campaign [November 1863] | Western | 1863 | 2 |
| Longstreet's Knoxville Campaign [November-December 1863] | Western | 1863 | 3 |
| Mine Run Campaign [November-December 1863] | Eastern | 1863 | 1 |
| Operations on the Memphis & Charleston Railroad [November 1863] | Western | 1863 | 1 |
| Operations about Dandridge [December 1863-January 1864] | Western | 1863 | 3 |
| Operations in North Alabama [January 1864] | Western | 1864 | 1 |
| Demonstration on Dalton [February 1864] | Western | 1864 | 1 |
| Demonstration on the Rapidan River [February 1864] | Eastern | 1864 | 1 |
| Florida Expedition [February 1864] | Lower Seaboard | 1864 | 1 |
| Meridian and Yazoo River Expeditions [February 1864] | Western | 1864 | 2 |
| Operations in the Indian Territory [February 1864] | Trans-Mississippi | 1864 | 1 |
| Forrest's Expedition into West Tennessee and Kentucky [March-April 1864] | Western | 1864 | 2 |
| Kilpatrick-Dahlgren Raid [March 1864] | Eastern | 1864 | 1 |
| Red River Campaign [March-April 1864] | Trans-Mississippi | 1864 | 7 |
| Camden Expedition [April 1864] | Trans-Mississippi | 1864 | 5 |
| Operations Against Plymouth [April-May 1864] | Eastern | 1864 | 2 |
| Atlanta Campaign [May-September 1864] | Western | 1864 | 16 |
| Bermuda Hundred Campaign [May 1864] | Eastern | 1864 | 5 |
| Crook-Averell Raid on the Virginia & Tennessee Railroad [May 1864] | Eastern | 1864 | 2 |
| Grant's Overland Campaign [May-June 1864] | Eastern | 1864 | 11 |
| Lynchburg Campaign [May-June 1864] | Eastern | 1864 | 3 |
| Early's Raid and Operations Against the B&O Railroad [June-August 1864] | Eastern | 1864 | 7 |
| Expedition to Lake Village [June 1864] | Trans-Mississippi | 1864 | 1 |
| Forrest's Defense of Mississippi [June-August 1864] | Western | 1864 | 3 |
| Morgan's Raid into Kentucky [June 1864] | Western | 1864 | 1 |
| Richmond-Petersburg Campaign [June 1864-March 1865] | Eastern | 1864 | 19 |
| Sully's Expedition Against the Sioux in Dakota Territory [July 1864] | Trans-Mississippi | 1864 | 1 |
| Operations in Mobile Bay [August 1864] | Western | 1864 | 1 |
| Sheridan's Valley Campaign [August-October 1864] | Eastern | 1864 | 8 |
| Franklin-Nashville Campaign [September-December 1864] | Western | 1864 | 8 |
| Price's Missouri Expedition [September-October 1864] | Trans-Mississippi | 1864 | 11 |
| Burbridge's Raid into Southwest Virginia [October 1864] | Western | 1864 | 1 |
| Breckenridge's Advance into East Tennessee [November 1864] | Western | 1864 | 1 |
| Sand Creek Campaign [November 1864] | Trans-Mississippi | 1864 | 1 |
| Savannah Campaign [November-December 1864] | Western | 1864 | 5 |
| Expedition Against Fort Fisher [December 1864] | Eastern | 1864 | 1 |
| Stoneman's Raid into Southwest Virginia [December 1864] | Western | 1864 | 2 |
| Operations Against Fort Fisher and Wilmington [January-February 1865] | Eastern | 1865 | 2 |
| Carolinas Campaign [February-March 1865] | Western | 1865 | 5 |
| Appomattox Campaign [March-April 1865] | Eastern | 1865 | 14 |
| Mobile Campaign [March-April 1865] | Western | 1865 | 2 |
| Operations near Saint Mark's [March 1865] | Lower Seaboard | 1865 | 1 |
| Sheridan's Expedition to Petersburg [March 1865] | Eastern | 1865 | 1 |
| Wilson's Raid in Alabama and Georgia [April 1865] | Western | 1865 | 1 |
| Expedition from Brazos Santiago [May 1865] | Trans-Mississippi | 1865 | 1 |