I've decided to officially start the IC.
Just remember that IC posts are from the perspective of a Character (typically your nations leader and other holders of political power such as councilors or rebel leaders) who is going through their day and making decisions. 
Also, messages to different nations shall be put in a hider stating what nation it is addressed too. If it is in a hider it means that any nation not addressed cannot act on what is being said in that message, even if it involves war with your nation.