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Protect against ethnic violence. explain that comparison. break that down for us. >> its more the invocation of self defense. everybody said they are acting on self defense. russia has been suggesting that maybe it is in the crimean order to protect ethnic russians in the region. of course people on the kbroupd a ground are saying there is no threat. i should stress that even if there was a threat to russians, that is not a basis under which putin can move in. so its more the invocation and righ...