Operation Ceinture 1947 • Contemporary Era
Discovering the battle
20 November – 22 December 1947 French victory

Operation Ceinture

First Indochina War · Red River Delta, Tonkin, French Indochina

Summary

A large-scale sweep operation around the Red River delta to reduce Việt Minh influence and restore French control. Despite some pitched battles, the Việt Minh practiced evasion, suffering losses but retaining its capacity for action.

Historical context

In the wake of Operation Léa, the French command sought to secure the heart of Tonkin and the Hanoi basin, essential for maintaining the colony. The operation extended across several provinces and involved motorized, river, and air units.

Tactics

Coordinated encirclement operations rely on Dinassaut (naval assault divisions) for transport and support on inland waterways, complemented by village searches, ambushes, and night patrols. The DBMP and ground groupings sweep the Tuyen Quang – Thai Nguyen – Phu Lang Thuong – Viet Tri quadrilateral, but Việt Minh mobility limits any decisive success despite French material superiority.

Consequences

Operation Ceinture (19 November – 14 December 1947), extending Léa in the Tuyen Quang – Thai Nguyen – Phu Lang Thuong – Viet Tri quadrilateral, does not decapitate the Việt Minh: the initial objective of destroying the redoubt fails. According to SHAT archives, it inflicts 260 killed and 49 prisoners on the Việt Minh side; the combined Léa–Ceinture toll is 40 killed, 40 missing, and 580 wounded on the French side. The area remains under French control, but the Việt Minh retains its capacity to infiltrate the delta.

Location

Place : Red River Delta, Tonkin, French Indochina
Coordinates : 21.2°N, 105.7°E

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