please look at how many peace keep mission PLA are

doing every year. It increases in number of people sent and number of missions. Getting combat experience is needed, but how do you they had not got some in the trouble areas of Burma, Tibet, Xinjiang, and peace keeping in hostile territories? Yes it is not large scale like US, but that doesn't mean they won't be valuable. Unless you wish China like to fight wars after wars like US does, then I rather they keep doing what they are doing with the UN, anti-terrorism sweeps, and anti-border drug traffic.