Unity, friendship, harmony and purity. According to the information of China Military Network, the grassroots construction meeting of the Central Military Commission emphasized: "It is necessary to carry out in-depth activities of respecting and loving soldiers, cultivate the revolutionary friendship between officers and men through thick and thin, live and die together, and consolidate and develop unity, friendship, harmony and purity." To sum up, the army needs unity and friendship, harmony and pure internal relations.