Xiaoqian Fortress, among the many fortresses in the Yinling Wilderness, is famous for its abundance of widows. Of course, the entire Yinling area in Tianfeng Plain is also renowned for its high number of lonely and widowed inhabitants. There's no way around it, being a man in Yinling is a severe challenge, with the possibility of battle at any time and place.
The reason why Xiaoqian Fortress has so many widows is critical: it's too far from any water source. Many people were attacked on their way to fetch water, and since water is an indispensable basic necessity for survival, the male population in the fortress has been dwindling over time despite the lack of major battles, as if bled dry continually.
Of course, nowadays, women have started to take part in water fetching; otherwise, this place might eventually turn into a Daughter Country.