Featurette: The Invasion: Snatched - How do you invade without ships, planes or bombs?

致入侵:-如何做到没有舰队入侵，是计划或炸弹？

Also there is a 1960's featurette included on the northern lights that is enjoyable too.

且还有一部20世纪60年代描绘北极光的短片，也有赏性。