Because war is just a way for politics to achieve its goal, it does not mean that war is politics. The relationship between them is just like ends and means, but they are closely related in the political games of past dynasties. Without political guidance, the victory of any war is only temporary. Just like World War I and World War II, although Germany's military won brilliant victories in the early stage, it suffered great failures in the later stage, which is a good example. Therefore, when Chairman Mao founded the Party, he made clear the important principle of the Party commanding guns.
This makes us further understand another famous saying of Chairman Mao: militarists in China may not understand politics, but politicians in China must understand military affairs.