During the Long March Zhu and Zhou Enlai organized certain battles in tandem.
There were few positive effects since the real power was in the hands of Bo Gu and Otto Braun.
In the Zunyi Conference, Zhu supported Mao Zedong's criticisms of Bo and Braun.
After the conference, Zhu cooperated with Mao and Zhou on military affairs.
In July 1935 Zhu and Liu Bocheng were with the Fourth Red Army while Mao Zedong and Zhou Enlai with the First Red Army.
When separation between the two divisions occurred, Zhu was forced by Zhang Guotao, the leader of Fourth Red Army, to go south.
The Fourth Red Army barely survived the retreat through Sichuan Province.
Arriving in Yan'an, Zhu directed the reconstruction of the Red Army under the political guidance of Mao.

During the Second Sino-Japanese War and the Chinese Civil War, he held the position of Commander-in-Chief of the Red Army and, in 1940, Zhu, alongside Peng Dehuai, devised and organized the Hundred Regiments Offensive.
Initially, Mao supported this offensive.
While a successful campaign, Mao later attributed it as the main provocation for the devastating Japanese Three Alls Policy later and used it to criticize Peng at the Lushan Conference.
During the Long March Zhu and Zhou Enlai organized certain battles in tandem. There were few positive effects since the real power was in the hands of Bo Gu and Otto Braun. In the Zunyi Conference, Zhu supported Mao Zedong's criticisms of Bo and Braun. After the conference, Zhu cooperated with Mao and Zhou on military affairs. In July 1935 Zhu and Liu Bocheng were with the Fourth Red Army while Mao Zedong and Zhou Enlai with the First Red Army. When separation between the two divisions occurred, Zhu was forced by Zhang Guotao, the leader of Fourth Red Army, to go south. The Fourth Red Army barely survived the retreat through Sichuan Province. Arriving in Yan'an, Zhu directed the reconstruction of the Red Army under the political guidance of Mao.
During the Second Sino-Japanese War and the Chinese Civil War, he held the position of Commander-in-Chief of the Red Army and, in 1940, Zhu, alongside Peng Dehuai, devised and organized the Hundred Regiments Offensive. Initially, Mao supported this offensive. While a successful campaign, Mao later attributed it as the main provocation for the devastating Japanese Three Alls Policy later and used it to criticize Peng at the Lushan Conference.
Zhu De