World 6 > World 5 ?

[Rugila]

Bah.. If some Russian guys would are to enter my claim, i would hire a group of rangers to hunt those vandals down.
Always trying to pick a spot far away from Russians, that will mostly stop kind like that happening.
Also ( if possible ) would be great if you gather a group of players in your village.
Even Russians aren't stupid ones, they do not attack if they are overpowered!

[Kaios]

If they didn't actually just bash the palisade down and repair it after they were finished, then it's most likely the walljump used was related to the hearthfires at your walls.

For a time during World 5 (though I'm sure it has been used in previous worlds) there was a walljump being used that allowed hearthfires to spawn over walls when placed close to the wall. A player could then use a newly spawned character to summon the raiding faction inside the walls.

As far as I know however this one is fixed.