In October 1935 Mao's troops, reduced to 8.000 men, reached Northern Shaanxi, where two other Red Army units had established a Communist-controlled area. This 'Union of the three armies' is considered the end of the Long March. After the Long March, the Communists set up a more permanent power base in Yan'an.
Nr. 8 of the poster set An arduous journey.
This is a print from the tenth edition (January 1965).