[quote=@souleaterfan320]
<Snipped quote by Multifarious>

Harlock: I see... Well, where can I sign up?
[/quote]

To join the IA? Well, first you need citizenship. After that, if the military is what you are seeking to join, then you'll need to speak to a Star Paladin or a General. General Curtis is the first to come to mind that could help you along with that.