Japanese Government considering use of tracer rounds to warn Chinese planes
Article here
http://www.businessinsider.com/china-fighter-jet-flights-diaoyu-senkaku-islands-2013-1#ixzz2Hgy37vqn
and here
http://www.chinadaily.com.cn/china/2013-01/11/content_16106877.htm
Fun times eh, might have to ask for some bunker designs and tips from Coligny.