Linked from
The 17 pages that link to State of Qin, each with the reason it gives.
Battle of ChangpingRelated: Qin sought to absorb Shangdang and remove Zhao as a major obstacle.
Li SiRelated: Li Si left his home state of Chu to seek advancement in Qin.
Lian PoRelated: Qin was the principal military opponent against which Lian Po defended Zhao.
BaojiRelated: The state’s western heartland lay near Baoji and its surrounding routes.
Su QinRelated: Qin was the expansionist power the alliance was meant to contain.
Li MuRelated: Qin’s invasions tested Li Mu’s defense of Zhao in his final campaigns.