According to the UN, genocide:
>...means any of the following acts committed with intent to destroy, in whole or in part, a national, ethnical, racial or religious group....
Besides Iceland, all UN member nations have a history of land acquisition through force, colonization, or dispossession. By their own definition, they're all guilty of genocide "in part" at some point in their histories, with several in the last 50 or 100 years.