Complex sentence: The 11th Kentucky Infantry was organized at Camp Calhoun in Calhoun, Kentucky and mustered in for a three-year enlistment on December 9,1861 under the command of Colonel Pierce Butler Hawkins.
Split into simpler sentences: The 11th Kentucky Infantry was organized at Camp Calhoun in Calhoun, Kentucky and mustered in for a three-year enlistment on December 9,1861. It was mustered in under the command of Colonel Pierce Butler Hawkins.