So according to you both adversaries will "comparitively" utilise their whole assets against us, that too in one sector?
Genuine query. Do you have some kind of background over Op Logistics of a Brigade or a Division in Pivot/Strike Corps? Am interested to know only in order to try and understand how to explain things to you without giving out information that has no business being in public domain, howsoever trivial it may be, because even a useless 'fact' known is an unnecessary detail out.
Suffice to say, neither they, nor us, will ever have 100% assets available, ever. Nor will we have the luxury of having an intact logistics support system when missiles get flying, as number of targets that we need to address when taking on two adversaries simultaneously are significantly much greater than what they have to target and there will be a time when the number of targets that they need to 'kill' to severedly and adversely affect our war making capability (military hardware, supply of critical equipment etc) will be "0" but we will still be having quite a few on their side, with nothing to replace our lost/expended equipment with while they will have some capacity still to do the same. I hope you are able to get the idea here.
Your logistics become an issue beyond 96 hours. And no, no war is going to end in 96 hours ... especially when all 03 are nuclear armed. So, the game, if push comes to a shove, is on the resilience of your logistics support and replenishment as also the ability to sustain and survive destruction.
Odd day/Even day kind of arguments.
Not sure of the idiomatic use here. But, if someone has no clue of planning & support to military operations, then for that man, it (a war) is nothing other than a boxing bout. And heaven help that formation who has a leader thinking like that.