There are several cases that are more characteristic and practical. First of all, what I want to mention today is to achieve it through war plunder. Every time a city is captured, women will be plundered as war resources. In the war years, the fate of these women was very tragic. Under normal circumstances, they will be placed in military camps as military prostitutes as a tool for soldiers to vent their desires. Once the war breaks out, or suddenly moves away, the lives of these women cannot be effectively guaranteed. What awaits them can only be killing or plundering again. But this is limited to enemy cities, and any dynasty's army that dares to do this to its own cities will be severely punished.
The second classic case is the dependents of the army, which is also common in various dynasties, but there are generally official restrictions on the people who carry their families. For some people with a slightly higher level, the emperor will also reward some women before going out to war. The purpose of doing this is not only to take care of their lives, but also to show their good feelings and expect them to better serve the country. This situation is generally not enjoyed by ordinary soldiers.
The third way is to be a military prostitute. In fact, this was as early as the Spring and Autumn Period and the Warring States Period. There is a story about a very famous strategist in that period. His name is Guan Zhong, and he proposed to set up a special military prostitute in the army. The purpose is to ensure the physiological needs and combat effectiveness of soldiers. Later, this policy was used by many dynasties until the demise of the Qing Dynasty.