Even the PLA in tibet with much more substantial tech logistics only use 120 mm self propelled guns. PLA rocket corp multi-barrel rockets with glider warheads can reach much of N india. I bet the future battle field will be swamped by robots of all types. http://www.popularmechanics.com/military/a20722/china-mini-drone/    ---China's Mini-Drone Packs a Heavyweight Punch