The Caucasus Grenadier Division saw action since the first days of World War I. In October–September 1914 the division took part in fighting against the German Army in the Augustów Forest (in modern-day Poland) during the East Prussia Operation, and later that month fought in the First Battle of the Masurian Lakes. From November 22–29, 1914, the division fought in the defense of Warsaw. In the spring of 1915 it took part in defending the Bzura River and later in the Siege of Novogeorgievsk. In May 1915, the Caucasus Grenadier Division fought in the defense of Galicia. Later during the Russian Civil War, some of the unit's members would join the Volunteer Army at Tsaritsyn.