The Gari is a short river that flows in Monte Cassino, Italy at the southern end of the region of Lazio. The Battle of Gari River, better known as the Battle of Rapido River, one of the bloodiest battles of the Italian Campaign of World War II occurred in 1944, along its banks.
The river origins from a spring in the center of Cassino, in Piazza Corte, at the foot of Montecassino. It flows underground and reappears in the Villa Comunale, the main public park in the town. In the thermal area known as Varronian Thermal Baths, it increases its discharge considerably from several springs, as well as from the river Rapido. In Sant Apollinare, few miles south of Cassino, it joins the Liri to form the Garigliano river, which marks the border between Lazio and Campania.
