When did 'nervous' become such an overused word? Especially, when describing international relations?
I can see the Uki's problems, because they overthrew a legitimate government, split the country into two and are technically, economically and mentally bankrupt. Their concern should not be Russia, but the West, because the money spigot will be shut off pretty soon.

As for the other - Latvia has no economy to speak of, no natural resources and such a small land mass, that in any conflict it isn't worth occupying, let alone holding.

But here is an idea: instead of being 'nervous' why don't they treat their Russian-speaking minority with respect and give them equal rights? I'm sure that would take care of their 'nervousness' real fast.