On February 2, 1939, the production committee was established in the Shaanxi border district. On February 2, 1939, the production committee was established in the Shaanxi border district as the guiding organ of the production movement. The Shaanxi border district, inspired by the slogan of "Hand Your Own, Furnish Foods", produced mass production to the heat of the sky. Mao Zedong, Zhou Enlai, Zhou Yuan, Zhou Yuan, etc. took the lead in production labor. The troops under the call of "Back to the battlefield, Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho Ho