Yeah, when you have that much more power (or at least believe to), it's more about opportunity. Russia had an opportunity to invade because Ukraine was not part

Yeah, when you have that much more power (or at least believe to), it's more about opportunity. Russia had an opportunity to invade because Ukraine was not part of NATO yet, and probably had rebuilt their forces (they seem to be waging a war every 6-8 years). Any attempt to legitimize their attack by pointing to threats they imagine other countries pose to Russia, is easily countered by the very obvious and direct threat that Russia eagerly poses to other countries. Temporary neutrality is not going to fix this; in 8 years, they're going to try again. All neighbours of Russia would be wise to join a defensive alliance.