https://www.dw.com/en/why-ukraines-s...video-65458883
Thats not gonna be a sure-fire success... And I lean myself far out of the window, but if the offensive runs really badly and does not produce the wanted success, this will mark the beginning of the end for support of Ukraine. And without weapons and ammo delivered, Ukraine must give up fighting sooner or later.
In other words: this offensive's outcome likely will decide the outcome of the war.