• The Grand Army of the Republic and Kindred Societies 
• Department of Colorado and Wyoming: Post Names and Locations
• Civil War Sites in Colorado
• Colorado Civil War Map of Battles
• Civil War Rosters: Colorado Links
• Union Regimental Index: Colorado
• 1st Regiment, Colorado Cavalry: History and Roster
• 2nd Regiment, Colorado Cavalry: History and Roster
• 2nd Regiment, Colorado Infantry: History and Roster
• 3rd Regiment, Colorado Cavalry: History and Roster
• 3rd Regiment, Colorado Infantry: History and Roster
• Denver City Home Guards Co. A and B: History and Roster
• Colorado Independent Battery (McLain's) Light Artillery: History and Roster
• The American Civil War Homepage
• the U.S. Civil War Center
• Colorado Civil War Casualties
• Colorado Volunteers Transcript of Record Index (1861-1865)
• Civil War Genealogy
• Civil War bibliography

World War I

• World War I Museum & Memorial

• Women in World War I

World War II

• They Drew Fire-Combat Artists Gallery from WWII.
• Memorial at Amache for the Niesi who died in WWII.
• World War II Troop Ship Crossings
• The WWII U.S. Veterans Website
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Korean

• Colorado Soldiers who died in the Korean Conflict
• U.S. Military Personnel who died in the Korean War
• The Korean War: The Forgotten War
• Korean War
• Korean War Veterans Registry
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Viet Nam

• Colorado Soldiers who died in the Vietnam Conflict
• The Vietnam Veterans Memorial -- Colorado
• 244th Engineer Battalion Combat (Heavy) Denver, Colorado
• The Virtual Vietnam Wall
• Vietnam Veterans Memorials around the World
• "The Wall"
• A Vietnam Veteran's Memorial Wall
• Found Dog Tags of Viet Nam.
• Vietnam War Casualties - June-December 1966 & January-December 1968

Desert Storm

• Desert Storm, Tenth Anniversary
• Desert Storm Memorial (to be built 2021)

Other

• Colorado Veterans Grave Registrations
• The Center for Women Veterans
• Daughters of Union Veterans of the Civil War 1861-1865 Colorado & Wyoming Department
• Colorado/Wyoming Department - Sons of Union Veterans of the Civil War
• Military Order of the Loyal Legion of the United States
• Fallen United States Marines
• Police Officers killed in the line of duty