Project Blue Sword-B

Project Blue Sword-B
	Part of the Sino-Vietnamese conflicts (1979–1991)
Date	14 October 1986
Location	Songhu Ling, Wenshan County, Yunnan, China
Result	Chinese victory
Belligerents
China	Vietnam
Commanders and leaders
Chang Wanquan; (Deputy Commander of 139th ID ); Ma Quanbin (WIA); (1st commando team leader); Qi Zhenwu †; (2nd commando team leader)	General Vũ Lập ; Brigadier general Đỗ Thanh Trì ; (313th division commander)
Units involved
People's Liberation Army 5th Company, 416th Infantry Regiment; Electronic Countermeasures Detachment; 56 artillery batteries;	Vietnam People's Army 1st Battalion, 122nd Regiment, 313th Division; 313th Division Artillery Group; 168th Artillery Brigade; 457th Artillery Regiment; 150th Artillery Regiment;
Strength
207	500+
Casualties and losses
22 killed; 56 wounded	304 casualties

On 14 October 1986, the Lanzhou Military Region of the Chinese People's Liberation Army (PLA) launched a raid operation called the Project Blue Sword-B (Chinese: 蓝剑-B计划) or the Operation Blue Sword-B (Chinese: 蓝剑-B行动) during the Sino-Vietnamese conflicts to capture several Vietnamese People's Army (VPA) strongholds near Lao Shan.