[quote=@Willy Vereb]
<Snipped quote by Skepic>Yup, that's more likely to get things going.
At first Yllendthyr would be neutral and only assist in offering alternative trade routes without touching Tin territory.
If it comes to actual war they would likely offer an alliance and may propose plans for a two pronged attack.

[/quote]

And, should a two pronged attack against Tin start, you can assume I will be jumping in. This sounds like the start of a wondrous war.