What do you mean by recruiting to buy horses?

What do you mean by recruiting as follows:

Recruit troops and buy horses is an idiom, which means recruit troops and buy horses. This idiom first appeared in "Water Margin", which refers to recruiting and buying horses to enhance the combat effectiveness and quantity of the army.

In the water margin, in order to strengthen his power, Song Jiang recruited many brave men by various means, bought a large number of horses and weapons, and greatly expanded his army. These heroes include Song Wu, Lin Chong, Li Kui jy and other famous figures.

With the passage of time, the meaning of the idiom "recruiting soldiers and buying horses" has gradually expanded. Now it generally refers to recruiting people and preparing materials, which are mostly used for pre-war preparations or organizing activities. In today's society, this idiom is usually used in various organizations, institutions, companies and other occasions, indicating that an organization prepares for an important task or activity by recruiting and purchasing needed items.

In a word, the meaning of this idiom evolved gradually from the original meaning, and now it generally refers to the process of recruiting personnel and preparing materials.

In addition to literary works such as Water Margin, this idiom also has certain applications in historical events and reality.

In the history of China, before launching a war, Cao Cao used to prepare the army by recruiting soldiers and manufacturing weapons to achieve his political and military goals.

In modern society, some enterprises will also prepare for the launch of new products or services by recruiting and purchasing the required materials. For example, a newly established company may need to recruit a large number of employees and buy the necessary equipment to launch new products. This process can be vividly called "recruiting".

In short, the meaning of this idiom has gone beyond its original literary and historical background, and it is widely used in various organizations, institutions, companies and other occasions to indicate the preparation of recruiting personnel and purchasing materials.