Chickamauga and Chattanooga Battlefields: Chickamauga and Chattanooga National Military Park—Georgia, Tennessee

In Short

This historical handbook outlines the critical 1863 campaigns around Chattanooga, Tennessee, detailing how control of a key railway hub swung from Confederate victory at Chickamauga to Union dominance on Missionary Ridge. The text explains the geography, logistics, and command decisions that shaped the conflict, following the maneuvering of Northern and Southern armies across mountainous terrain and winding rivers. Written with administrative clarity, it documents troop movements, battlefield terrain, and commander strategies, concluding with a tour guide to the physical park preserved today to commemorate the soldiers who fought there.

The Story

The narrative opens in early 1863 with East Tennessee trapped in strategic and political tension. The region's small farmers lean strongly toward the Union, but Confederate forces occupy the area, utilizing its rich grain fields, livestock, and rail lines to feed the Southern war effort. Federal authorities urge Major General William Rosecrans to march his Army of the Cumberland against General Braxton Bragg’s Army of Tennessee. In June, Rosecrans finally launches the Tullahoma campaign, using clever flanking maneuvers through heavy rains and blocked mountain roads to push Bragg out of middle Tennessee and back into Chattanooga without a major battle.

Determined to dislodge Bragg from Chattanooga, Rosecrans crosses the Tennessee River in August 1863. He divides his army into three separate columns across forty miles of rugged, cedar-choked mountain terrain. Believing Bragg is in full retreat, Rosecrans advances blindly, but Bragg is actually concentrating his forces around LaFayette, Georgia, while gathering massive reinforcements. Southern authorities execute a remarkable logistical feat, sending Lieutenant General James Longstreet’s corps over nine hundred miles of domestic rail to join Bragg.

Realizing his isolated corps face destruction, Rosecrans hastily orders a concentration along Chickamauga Creek. The Battle of Chickamauga begins on September 18, evolving into two days of chaotic, blood-drenched combat through dense undergrowth. On September 20, a fatal gap opens in the Union center. Longstreet drives his command straight through the line, routing Rosecrans and two corps commanders, who flee to Chattanooga. Major General George H. Thomas earns the title "Rock of Chickamauga" by holding Snodgrass Hill against repeated assaults, allowing the Union army to pull back without complete annihilation.

The victorious Confederates besiege Chattanooga, occupying Lookout Mountain and Missionary Ridge to sever Northern supply lines. Besieged Union troops face severe rations cutbacks while hundreds of draft animals starve. Washington acts decisively, placing Ulysses S. Grant in command of the new Military Division of the Mississippi and shipping thousands of reinforcements by rail under Joseph Hooker and John Sherman. Grant opens a new supply line—the "Cracker Line"—and prepares a counteroffensive.

Between November 23 and 25, the siege breaks during the Battle of Chattanooga. Union forces capture Orchard Knob, while Hooker’s men take Lookout Mountain in the misty "Battle Above the Clouds." On November 25, Grant orders an attack against the rifle pits at the base of Missionary Ridge. In an unscheduled surge, Union infantrymen charge up the steep slope, overrunning the Confederate crest. Bragg’s line shatters, forcing a Southern retreat into Georgia, securing East Tennessee, and clearing the path for Sherman's future campaigns.

How It Unfolds

The Tullahoma maneuver Through relentless summer rains, General Rosecrans uses a series of brilliant flanking movements to force General Bragg out of his entrenched positions at Tullahoma. Bragg withdraws southward into Chattanooga, leaving East Tennessee’s vital rail lines and agricultural resources exposed to Federal advance.

The march across the mountains Rosecrans splits the Army of the Cumberland into three separate columns to cross the rugged terrain south of Chattanooga. Unaware that Bragg is quietly gathering heavy reinforcements behind Pigeon Mountain, the divided Northern corps march into a trap before hurriedly attempting to regroup.

The clash at Chickamauga Two days of fierce, confused fighting erupt along the wooded banks of Chickamauga Creek as Bragg attempts to cut Rosecrans off from Chattanooga. On the second day, a fatal gap in the Union line allows Longstreet’s Confederate wing to sweep the field, though Thomas holds Snodgrass Hill long enough to cover the retreat.

The siege of Chattanooga Confederate forces occupy the high ground on Lookout Mountain and Missionary Ridge, blockading the river, rail, and road routes into Chattanooga. Union soldiers face severe food shortages and heavy animal losses until General Grant arrives, appointing Thomas to replace Rosecrans and establishing a reliable new supply route.

The storming of the heights Grant coordinates a multi-pronged assault, sending Hooker to fight up the slopes of Lookout Mountain while Sherman attacks the northern end of Missionary Ridge. When Sherman hits stiff resistance, Thomas's infantry unexpectedly rushes all the way up Missionary Ridge's steep face, breaking the Confederate defensive line and ending the siege.

The People

• General Braxton Bragg: Commander of the Confederate Army of Tennessee who skillfuly gathers reinforcements and wins a tactical triumph at Chickamauga. However, internal dissension among his officers and hesitance to pursue the defeated enemy prevent him from capitalizing on his victory, culminating in his army's eventual rout at Chattanooga.
• Major General William Rosecrans: Leader of the Union Army of the Cumberland whose brilliant maneuvers drive Bragg out of middle Tennessee. His confidence turns into panic during the breakthrough at Chickamauga, where he is swept along in the retreat and ultimately relieved of command.
• Major General George H. Thomas: A steadfast Union corps commander who assumes control on the field at Chickamauga after the center collapses. His stubborn defense of Snodgrass Hill saves the Union army from total destruction, earning him the nickname "Rock of Chickamauga" and the command of the army.
• General Ulysses S. Grant: Placed in overall command of Northern forces in the Western theater during the crisis at Chattanooga. He systematically opens supply lines, reorganizes the command structure, and directs the coordinated offensive that shatters the Confederate blockade.
• Lieutenant General James Longstreet: High-ranking Confederate commander whose corps makes a vital 900-mile train journey from Virginia to Georgia. His decisive assault through the gap in the Union line at Chickamauga secures the Southern victory.

In Its Own Voice

"Since we left Murfreesboro (June 24) rain has been falling almost constantly; today it has been coming down in torrents, and the low grounds around us are overflowed."

— Brigadier General John Beatty’s diary entry captures the grueling environmental conditions that defined the initial Tullahoma campaign movement.

"The movement of Longstreet’s troops from Virginia to reinforce General Bragg in Georgia was an outstanding logistical achievement for the Confederacy."

— The narrative highlights the critical role played by railroad transport in moving thousands of soldiers across hundreds of miles to alter battlefield dynamics.

"We were all strangers, no one division ever having seen either of the others."

— A soldier describes the hastily assembled Union force under General Hooker that launched the famous assault up Lookout Mountain.

What It's Really About

The text examines how military logistics, top-level command decisions, and physical geography intersect to alter the outcome of a major campaign. Beyond tactical movements, it highlights the strategic importance of transportation infrastructure, demonstrating how control of rail junctions like Chattanooga dictated the survival of armies and the movement of supplies.

The work also explores the human cost of operational miscalculations and the role of leadership under pressure. It illustrates how failure to communicate, hasty assumptions about an enemy's retreat, and command friction directly influence battlefield survival. Finally, the narrative emphasizes the political and social divisions of East Tennessee, showing how local Unionist loyalties in a mountain culture complicated the military occupation and political strategy of both sides during the war.

Why Read It Today

This work serves as a clear, accessible entry point for readers seeking an unvarnished breakdown of one of the Civil War's most pivotal campaigns. It avoids grand sentimental narratives, choosing instead to present military history through straightforward accounts of terrain, troop numbers, supply lines, and tactical maneuvering. Readers interested in staff work, geography, and battlefield movement will appreciate the clear layout of corps positions and official schedules.

The prose reflects its mid-twentieth-century handbook origin—direct, balanced, and free of melodramatic flourish. It does not linger on individual combat experience or modern social analysis, remaining strictly focused on operational command, unit deployment, and physical geography. While its military lists and technical descriptions require attentive reading, it provides a sharp, reliable roadmap of how two massive armies contested the gateways to the Deep South.