 In 264 BC, King Zhaoxiang sent Bai Qi to attack Han, capturing nine cities including Xingcheng (陘城) and killing 50,000 of the enemy, enabling Qin to blockade the routes around southern Taihang Mountains.In 262 BC, Bai Qi attacked Han and captured Yewang (野王), cutting off the Shangdang region from the Han mainland.King Huanhui of Han was fearful of the Qin military prowess and decided to concede Shangdang, but the local commanders refused to do so and instead surrendered the region to the state of Zhao.