How is this persons strategey?

[Gilrandir]

One more thing that the guy ignored - he never built watchtowers and border forts. They raise the province's loyalty and keep assassins and spies away. Useful if you don't want to see your (as Vikings) homelands get out of hand. They don't keep away the emissaries away, though, - and those crooks can bribe your army. Three time during my last Welsh campaign I had it happen to me. But then I trained an assassin and each time I saw a Saxon emissary penetrate into my kingdom I executed him. Three dead emissaries - and my assassin has three stars. At a boy.