the chu river and han boundary is a famous military boundary in chinese history. it first appeared during the chu river and han struggle in the late qin dynasty. at that time, liu bang and xiang yu used honggou as the boundary. liu bang led the eastern vassal states, and xiang yu led the western vassal states. honggou, that is, today's wohe river, is located in today's henan province. the specific location of the chu river and han boundary has undergone great changes after historical changes. in the han dynasty, the chu river and han boundary was located in the southwest of today's henan province, roughly in zhumadian city and xinyang city today. during the sui and tang dynasties, the chu river and han boundary moved northward, roughly in...
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