Agree on the $0
Lets examine the name:
Armies... armies of the world i would think. Lets go to the core of the problem: .org is currently used and considered to be used by organizations. The whole point of having an Army is to provide your country the comforting blanket of protection against possible attacks from the guys next door (or next block), isnt it (exception: Bush - he thinks the U.S. Army is his personal set of toy soldiers)? What organization would combine all armies under one umbrella? Think about it. Are we talking about NATO? Countries of the Warsaw Pact? Well... we have NATO already and i dont think they are looking for Armies.org Unless you are thinking of creating an organization that would combine all armies (in which case why have armies at all, hence why have the organization under the name?) and bring world peace, your domain is worth $0