Claim: The 1st Rhode Island Infantry Regiment, originally called the 1st Rhode Island Detached Militia and active from April 1861 to August 1861 and May 20, 1898 to April 1899, was engaged in the American Civil War and the Spanish-American War.
Evidence: The 1st Rhode Island Infantry Regiment was originally called the 1st Rhode Island Detached Militia. April 1861 to August 1861 and May 20, 1898 to April 1899 American Civil War
Spanish–American War 
April 1861 to August 1861 and May 20, 1898 to April 1899 The 1st Rhode Island Infantry Regiment was originally called the 1st Rhode Island Detached Militia. The 1st Rhode Island Infantry Regiment were two regiments of the United States Army, the first of which was raised in 1861 at the beginning of the American Civil War on a 90-day enlistment, the second during the Spanish–American War in 1898.