Comrade Mao Tse-tung wrote this work to sum up the experience of the Second Revolutionary Civil War and used it for his lectutes at the Red Army College in Northern Shensi.

• 毛泽东的这部著作，是为着总结第二次国内革命战争的经验而写的，当时曾在建立在陕北的红军大学作过讲演。