无盐县 / Wuyan County
无盐县 / Wuyan County enters the wiki through Qinji 133 as the Chu-Qi border location where 宋义 sends off his son after recommending him for office in 齐国. The episode says Song Yi leaves the main army and celebrates there with Qi officials.
The location is important less for geography than for contrast. At 安阳, Chu soldiers are hungry, cold, wet, and undersupplied while the relief army waits. At Wuyan, the chief general is associated with family advancement, wine, ceremony, and visible comfort. The source treats this contrast as a fatal morale and legitimacy error.
Wuyan therefore becomes the place where Song Yi’s delayed-rescue strategy begins to look like private interest rather than public command. 项羽 uses that appearance to accuse Song Yi of ignoring soldiers and state survival, helping prepare the ground for killing him after he returns to camp.