Well... are we SURE ISS and Militia aren't, just, talking about the same thing? Remember, ISS had jobs against pirates in WC 2, that's most of what the cut scene chatter was like. That's what the "Militia" does in Privateer. They are both policing. And a militia unit would respond against Kilrathi the best they could, too. Just like Blue Hair did in Wing Commander 2. Think he didn't get donut jokes from the pirates he bagged, or the Confed pilots that came through the system? Militia, ISS... just seems so much like a semantics issue when the two are seen doing the same thing. The coast guard is an example of the police force because that is how a police force would have to function in space - they are intercepting other ships and getting involved in illegal conflicts between other ships. A militia would need to do more than rescue one or two pilots, but probably tow, and respond to bigger problems that those various bases like refineries, mines, and such would have. And if they are a police force, there's differant ways modern police forces are structured. Some towns are so small they can't operate their own police or fire departments - they have special districts shared between 2, 3, or 4 towns, and sometimes these are setup by a whole county. Some of the systems in Privateer are so rinkey-dink, they would need a capital-ship logistically to get it done. Maybe not a modern destroyer, but something bigger than a shuttle or large fighter/bomber craft. Something so a fighter could remain on patrol and on stration, and something to control the larger freighter traffic criminals can muster. Got to be able to make a blockade before a smuggler can be a blockade runner.