I don't know...this can't bpde well because in the last 50 years or so, whenever the international balance is upset, something will happen to eventually bring it back again, often through the combined efforts of the UN, or through revolution, etc.
Russia shouldn't be doing this, but I can guarantee that they're feeling threatened by China and India, and they always have felt threatened by the USA, so they're trying to assert the remnants of their power. Stuff like this (war/weaponry related) tends to be Russia's solution to everything...at least in the past 80 years or so.