Perhaps the largest and best-known operation undertaken by the Milice was the Battle of Glières, its attempt in March 1944 to suppress the Resistance in the "département" of Haute-Savoie (in southeastern France, near the Swiss border). The Milice could not overcome the Resistance, and had to call in German troops to complete the operation. On Bastille Day, 14 July 1944, the Franc-Garde suppressed a revolt started by prisoners at Paris prison La Santé, as a result 34 prisonners were killed.