What does security mean in Red China?

Baoan is a county in Red China.

1. Baoan is Baoan County, now Zhidan County.

2. Red Star Shines on China describes Edgar Snow's passage in the northwest revolutionary base area of ??China (later the Shaanxi-Gansu-Ningxia Border Region with Yan'an as the center) from June 1936 to October 1936. What we saw, heard, and felt after interviews, conversations, and field trips reported the situation in China and the Chinese Workers’ and Peasants’ Red Army, as well as many Red Army leaders and Red Army generals.

3. In memory of General Liu Zhidan, who died in the revolution, Baoan County was renamed Zhidan in 1936. Zhidan County was the second red capital of the Chinese revolution after Ruijin, Jiangxi Province, and became the center for leading the national Red Army and the anti-Japanese and national salvation movement.