Building Industry In Old Times Chapter 360

From an engineering perspective, the Ming capital was extremely solid.

There are sixteen gates in the inner and outer cities alone.

The capital's defense circle could even be extended to Baoding, Hebei.

Emperor Chongzhen raced against time to select his trusted ministers and firmly control the defensive positions.

The officers and soldiers of the Beijing Camp that were counted included the Four Guards Camp, the Warrior Camp, the Internal Eunuchs, the Imperial Guards, the Imperial City Guards, and the Beijing Patrol Camp, etc.