The 101st Infantry Division was a Territorial division () during World War I, and a Fortress division () during World War II. During World War I, the division comprised: * 223rd Territorial Infantry Regiment. * 259th Territorial Infantry Regiment. * 268th Territorial Infantry Regiment. * 279th Territorial Infantry Regiment. The division was formed on the 25th of May 1914, and was dissolved on the 26th of November 1916. During this time, it was part of the French 3rd, 8th, 31st and 33rd Corps (Corps d'Armée (CA)), which in turn were part of the French 1st and 2nd Armies.