Lạng Sơn campaign

Lạng Sơn campaign
	Part of the Tonkin campaign, Sino-French War
	; Capture of Lạng Sơn, 13 February 1885
Date	3 –13 February 1885
Location	Lạng Sơn, northern Vietnam
Result	French victory
Belligerents
France French Cochinchina;	Qing dynasty
Commanders and leaders
Louis Brière de l'Isle ; François de Négrier; Laurent Giovanninelli	Pan Dingxin ; Feng Zicai
Strength
7,200 combatants ; 4,500 coolies	20,000 men
Casualties and losses
Tay Hoa: 18 dead, 101 wounded Ha Hoa: 4 dead, 18 wounded Dong Song: 3 dead, 41 wounded Pho Vy: 1 dead, 23 wounded Bac Vie: 30 dead, 188 wounded Total: 56 Dead, 371 wounded	Unknown

The Lạng Sơn campaign (3 to 13 February 1885) was a major French offensive in Tonkin (northern Vietnam) during the Sino-French War (August 1884–April 1885). The Tonkin Expeditionary Corps, under the command of General Louis Brière de l'Isle, defeated the Chinese Guangxi Army and captured the strategically important town of Lạng Sơn in a ten-day campaign mounted under formidable logistical constraints.