He feels an open summons and lets it grab him -
"It's a sort of halfhearted attempt to take territory from each other. Battles as such are rare, people just avoid going anywhere already occupied unless they think they have enough force to back it up. Fights happen when they're wrong, when they're right territory changes hands. Been going on as long as anyone can remember. Ah, and I strongly recommend not letting slip to anyone that we know this country as 'England.'"
Cam snorts. "Good to know. Is 'Britain' safe? I can sail in and trivially win battles, and I'm willing to do that against aggressors who don't have time-travelers and makers supporting their populations' quality of life, but I'd want to be assured of the twenty-second-century-standards humane treatment of anybody I'm going to drug until they fall over."
I don't know twenty-second-century standards. I can promise no torture, but prisoners would be being not tortured in a sixth-century cell. I should hope that fails. Chained to the wall, bread and water, virtually no light, imprisonment permanent unless ransomed. That sort of thing.
But I don't think taking any reasonable quantity of prisoners would win the war by itself anyway, just gain some territory."
"I take a dim view of killing people, especially given the uncertain status of the afterlife here. What did you have in mind for war-winning?"
There...aren't a lot of procedures for ending wars here. If we could locate and capture their kings, we might get them to recognize some borders for at least a few years. Do you know anything that can do that?"
"Not without pictures of the kings in question to go on. And by pictures I mean photographs sufficient for computer face recognition, so if you could get those you'd also know where the kings were and I could just pick them up and walk off with them."
A gigantic wall would also set borders, but wouldn't be worth it even if it wouldn't have the same foundation problem."
"Eh, if you just want something hard to get over I can do that without having to start it under the ground it particularly well. Make it bottom-heavy. It won't have to support trains. What would be the issue?"
More practically, I hope to have Britain be the one expanding. Not the typical, bloody way of course, but the wall would be a pointless inconvenience if it doesn't match the borders."
If we publicize that anyone at our border who doesn't want to owe fealty to a king can join the republic, a notable minority might take us up on it. It snowballs from there, of course."
"There's some serious collective action problem there, as long as your neighbors are still operating under a noble class who'd like to keep their jobs and their peasants don't have understood-to-be-trustworthy sources of news about the Britons."
Once hostilities are ended, nobles with too much time on their hands will travel through simply to see what's there. Eventually some of them will decide they'd rather join. We could even use bribery.
It'll be easier now, because they're under the thumb of the same Church. If the Church confirms and spreads the Republic proclamation, the Anglo-Saxons join us. The Picts might follow them, and the Gaels trust the Picts."
"Ah, I wasn't sure if there were pagans of some sort running around complicating the issue. But part of what I mean is that it might not be very safe for people to run away and join the Brits, they might run into punishment for defectors between there and here."
And we might even get other sides to agree that any people group or area of land that wants to join can. We'd be in a much better bargaining position, after all."
What if we just walk into a throne room while the king is holding court? Everyone would see our faces and the fact that they inexplicably can't stop us, but we would be able to leave with a royal bargaining chip."
"I could do this while wearing a mask," Cam says. "You're squishier... But I'd be hard pressed to do the job without visible magic. I don't think I can so much as hit people with tranquilizer darts without appearing the guns pre-aimed, I am not a marksman. I can knock out everyone I meet, though."
"How about a suit of plate mail? An armored knight walking in and everyone who challenges him falling over is...I don't know if that particular story has been told, but it's the kind of thing that would sound familiar and believable."
"Me or you in the armor? The problem with that is that without a set of wings I'm likely to fall over more than once on the way in. Being a maker doesn't do a thing for being clumsy. Does that ruin the effect? I could pose as your clumsy squire or something, I suppose."
If I'm in the armor do you think you could manage a disguise as someone who belongs there? You only need to get in the room, but you won't have seen their styles of speech or dress before."
"I can make clothes to match if you give me a loose idea of what they should look like. And keep my mouth shut when I can and mumble when I can't?"
You'll probably stand out for one reason or another, but if there's a sufficiently ominous figure in black armor nobody will remember someone looking slightly out of place."
"I'll wear a lot of black and a hood. Do you have preferences on what you want the armor to look like or should I be going for 'dark fantasy antagonist, only easy to walk in'?"