What do the soldiers stationed in Beijing mainly do?

Soldiers in Beijing Garrison are mainly responsible for the security and protection of the capital.

Beijing Garrison is the military leadership and command organ in Beijing, the capital of People's Republic of China (PRC), and the military work department of Beijing Municipal Committee of China and the military service work organization of Beijing Municipal People's Government. It is under the dual leadership of the Beijing Military Region of the Chinese People's Liberation Army and the Beijing Municipal Party Committee and Municipal Government of the Communist Party of China (CPC).