The Zhao State was one of the seven major states during the Warring States period in ancient China, which lasted from the 5th century to 221 BC. It was located in the northern part of present-day China, primarily in what is now Hebei province. The state was known for its strong military and strategic location, which allowed it to engage in various conflicts with neighboring states. Founded in the early 4th century BC, the Zhao State reached its peak under the leadership of notable figures like King Wuling, who implemented significant military reforms. However, it eventually fell to the Qin State in 222 BC, contributing to the unification of China under the Qin Dynasty.