Good strategy is to just wear down till they run out of people able to fight. Ukraine is at about 10% of the way there. It won't take all that long - in any cas

Good strategy is to just wear down till they run out of people able to fight. Ukraine is at about 10% of the way there. It won't take all that long - in any case, if Ukraine is to be defeated it will happen for demographic reasons (lack of births due to female emigration and men ageing out of service), not through combat attrition. ~20 years down the road when it happens, Russia will be so demographically weakened through it's losses it won't be of much threat to anyone.