3 possible outcomes I reckon:

- Pressure on Putin will make him retreat or broker some sort of temporary peace deal (perhaps annexing the two smaller eastern Ukrainian areas already "declared independent" and sticking with that - again I reckon this is only temporary and possibly only prolongs another mammoth attack on Ukraine in some years into the future). This may reduce some sanctions again.
- Putin continues the onslaught until Ukraine waves the white flag. No sanctions dropped and could cause more trouble.
- Putin continues the onslaught until Ukraine is completely destroyed. No sanctions dropped and could cause more trouble.