The army and the people are as fish and water
Mao Zedong's famous quote from his 1948 book, Aspects of China's Anti-Japanese Struggle, is paraphrased in the text of the popular poster above.
The collaboration of the peasants and army was an essential tenant for the success of the revolutionary struggle as originally defined in Marxist/Leninist dogma.
We see smiling villagers with the ever characteristic checked scarf of Southern freedom fighters handing over fresh provisions to soldiers. All are depicted in an idealistic socialist utopian light.