Not aware of this in PRC.
But in Okinawa or Afghanistan or South Korea, got this problem.
The US troops stationed in these 3 countries are not the elite troops. They are not the cream of the crop. They are third rate troops. Some of them commit rapes and killings of the locals. Infuriating the local population against foreigners.
The best or elite US troops are stationed in US itself to defend homeland or be sent out on special missions. For example, Seal Team Six.