Operation Ceinture was a late 1947 military endeavour by the French Far East Expeditionary Corps against the Viet Minh during the First Indochina War. A month-long effort that commenced on 20 November following the cessation of Operation Léa, "Ceinture" (French: "belt") intended to rid the region between Hanoi, Thái Nguyên and Tuyên Quang of Viet-Minh infiltration. The French utilised 18 paratroop battalions and naval landing craft to engage the Viet-Minh's 112 Regiment, however the latter were able to for the most part slip through French cordons, abandoning weapon caches. The cumulative casualties after Operation Ceinture and Operation Lea were 1,000 for the French and 9,500 for the Viet Minh (though some of these may have been civilians).