User blog comment:1dev4/A New Navy/@comment-13740085-20130905182127

Your talking about something like a physical enforcer of something like the 1922 Washington Naval Treaty (which limited total tonnage and types of ships available to the worlds navies). On paper it seems like a good idea, just not in practice. The navies that have been around longer (ex. ISAF) naturally have more members, therefore have more resources to pull from. The larger navies would be severely constricted, as all of their large memberships might not be able to contribute.