Waffledynamics said:
I did watch it, but my question is more about how to ensure that more defensible position is adequate. I recall seeing something about typically needing at least a 3:1 ratio for offense to have a chance. If they're at 7+:1, would even the more defensible positions be sufficient? They've been moving to more defensible positions a lot, and I imagine that number of Russian troops will mean Russia holding the ground will be easier due to the easier logistics in the East.
Unfortunately, I can't watch it again right now, but I don't think that video quite addressed my question.
If indeed the Ukrainians are facing a local superiority of 7:1 in forces, they are continuing to overperform. They should not be pressing an offensive on that front (unless they see the opportunity for a penetration and cutting Russian supply lines). A mobile defense is the preferred tactic under those circumstances. Maneuver can bring the opportunity to retake the ground that you cede while you look for the opportunity to regain local superiority.
Sun Tzu said in book 6: "Should the enemy strengthen his van, he will weaken his rear; should he strengthen his rear, he will weaken his van; should he strengthen his left, he will weaken his right; should he strengthen his right, he will weaken his left.
If he sends reinforcements everywhere, he will everywhere be weak."Also, "Appear weak when you are strong, and strong when you are weak."