[quote=@Leidenschaft]
Would it be feasible for House av Snaggasson to keep their fighting men top-notch by sending them to Vyntarland to fight and raid before recalling them as fully-blooded warriors who've proved their worth?
[/quote]

The Northmen do have allies on the coast of Vyntarland:

[quote]The Rift  - Established by one of the earliest rulers of Perhyr, The Rift is a vague association of territory across the Sea of Echoes in the vyntic homeland, but most notably it is the collection of outposts and strongholds that keep watch on the unruly primeval tribes of raiders, conquerors, and savages. People sworn to be Keepers of the Rift are generally burdened but hardy and know their responsibility well—for Perhyr it is rare to banish someone to the Rift as it should be a duty not a sentence. The current leader of the largest stronghold of The Rift, Vororborg, is the aging uncle of the current King and is known throughout the Northlands by his nickname “The Troll” as a mythic honorific of his strength. The current relations are good, but distant.[/quote]

There are two or three strongholds in this territory called The Rift, and Skavia would probably be eager to send men to aid in the defense against their feral cousins. Pretty malleable. As for "recalling them" I'm sure that said Keepers of the Rift would be not thrilled about sending men home but The Rift is not The Wall, it is not a sentence for life if so willed.

Surprised that the Vyntic raiders actually went around the guards and keeprs of The Rift and invaded Skavia come to think about it.