I wonder if the IRC logs from the Iraq War (round 2) will ever be declassified and released. IRC is used pretty extensively by the military for communications (generally just called "mIRC", since people associate it so strongly with the official military client), and there were a bunch of different channels on different networks to discuss operations in realtime.
> mIRC is part of the communication infrastructure of the US military,[15] which includes controlling unmanned airstrikes from the DGS-4 in Ramstein Air Base.[16][17]
http://publicintelligence.net/tactical-chat/