PLA garrisons are still organized mainly inwards. However, the PAP (people’s armed police) has picked up much of the internal security slack after 1989, when Ch

PLA garrisons are still organized mainly inwards. However, the PAP (people’s armed police) has picked up much of the internal security slack after 1989, when China realized tanks weren’t a great way to put down a protest (the PAP actually has riot-gear and riot training that China didn’t have much of in 89).