Poor Russia. Forced to invade Ukraine because of unrelenting pressure over decades by the U.S. and NATO.
Is that pretty much it, except for the fancy words like “irredentism”?
Where is the history of Russia engaging in diplomacy to relieve these real or perceived pressure on its border? Sullen resentment and complaining isn’t diplomacy. For its part, Ukraine gave up its nuclear arsenal in hopes of peace. That didn’t work out either.