Only 500MM per day. Very affordable for a couple of weeks. After 6 months, though, that's a $90 billion accumulated bill. That's not including escalation of costs as everything gets more difficult. Unlike the United States with its US dollar, Russia does not own the reserve currency of the world, so it cannot really afford to wage war at this level of intensity for the next 10 to 20 years that it would need to, in order to hope to achieve its extreme political and military objectives. It's a clearly idiotic an egregiously costly strategic error.