The 7th Regiment Illinois Volunteer Infantry (3 years) was an infantry

Infantry

Infantrymen are soldiers who are specifically trained for the role of fighting on foot to engage the enemy face to face and have historically borne the brunt of the casualties of combat in wars. As the oldest branch of combat arms, they are the backbone of armies...

 regiment

Regiment

A regiment is a major tactical military unit, composed of variable numbers of batteries, squadrons or battalions, commanded by a colonel or lieutenant colonel...

 that served in the Union Army

Union Army

The Union Army was the land force that fought for the Union during the American Civil War. It was also known as the Federal Army, the U.S. Army, the Northern Army and the National Army...

 during the American Civil War

American Civil War

The American Civil War was a civil war fought in the United States of America. In response to the election of Abraham Lincoln as President of the United States, 11 southern slave states declared their secession from the United States and formed the Confederate States of America ; the other 25...

.

Service

The 7th Illinois Infantry was mustered at Cairo, Illinois

Cairo, Illinois

Cairo is the southernmost city in the U.S. state of Illinois. It is the county seat of Alexander County. Cairo is located at the confluence of the Mississippi and Ohio rivers. The rivers converge at Fort Defiance State Park, an American Civil War fort that was commanded by General Ulysses S. Grant...

 on April 25, 1861 from the personnel of the 7th Illinois Volunteer Infantry Regiment (3 Months)

7th Illinois Volunteer Infantry Regiment (3 Months)

The 7th Regiment Illinois Volunteer Infantry was an infantry regimentthat served in the Union Army during the American Civil War.-Service:The 7th Illinois Infantry was mustered at Camp Yates, Illinois on April 25, 1861...

. The regiment saw service at the Battle of Fort Donelson

Battle of Fort Donelson

The Battle of Fort Donelson was fought from February 11 to February 16, 1862, in the Western Theater of the American Civil War. The capture of the fort by Union forces opened the Cumberland River as an avenue for the invasion of the South. The success elevated Brig. Gen. Ulysses S...

, the Battle of Shiloh

Battle of Shiloh

The Battle of Shiloh, also known as the Battle of Pittsburg Landing, was a major battle in the Western Theater of the American Civil War, fought April 6–7, 1862, in southwestern Tennessee. A Union army under Maj. Gen. Ulysses S. Grant had moved via the Tennessee River deep into Tennessee and...

, the Battle of Allatoona, the March to the Sea

March to the Sea

The March to the Sea can refer to:* A rough, but commonly used, translation for the Greek term anabasis** A commonly used title for Xenophon's work, The Anabasis* Sherman's March to the Sea during the American Civil War...

 and the Carolinas Campaign

Carolinas Campaign

The Carolinas Campaign was the final campaign in the Western Theater of the American Civil War. In January 1865, Union Maj. Gen. William Tecumseh Sherman advanced north from Savannah, Georgia, through the Carolinas, with the intention of linking up with Union forces in Virginia. The defeat of ...

.

The regiment mustered out of service on July 9, 1865.

Total strength and casualties

The regiment suffered 8 officers and 81 enlisted men who were killed in action or who died of their wounds and 3 officers and 174 enlisted men who died of disease, for a total of 266 fatalities.

Commanders

• Colonel John Cook - Promoted to brigadier general March 21, 1862.
• Colonel Richard Rowett - mustered out with regiment