下邳 / Xiapi
下邳 / Xiapi enters the wiki through Hanji 162-2 as the place where 彭越 defeats a Chu force while attacking 项羽’s rear. The episode emphasizes its strategic value by placing it near 彭城 and river transport, so pressure there threatens Chu logistics rather than only adding another captured city.
For this source, Xiapi matters as a 交通线切割 node. Its loss or harassment forces Xiang Yu to leave the central 荥阳相持 front and go east, giving 刘邦 a chance to retake 成皋.