>>717130081
if anything, Russia wants it to continue too, they have their own MIC and, all in all, Putin would leave as a hero: he neutralized Ukraine and NATO's expansion and he won the war. Ever since the failure of the first 2 weeks Putin (and the higher level of Russia's political and military sphere) have prepared themselves for a long war of attrition. They can support it as long as they can keep the money flowing from China (and it seems like it will). Also the closer ties between both countries makes it a virtuous cycle, Russia provides resources and China provides manufacture (most drone parts come from there, as well as machine parts, iron/steel, fiber optics, motors, etc...). What Russia fears is a demographic collapse and losing too many working-age men is the ticking bomb.
Europe is paying for most of Ukraine's armament after Trump strongarmed them and it's not even cheap so the longer this goes the more they lose too, but they can't negotiate with Russia after all that has happened, all they can do is hope for the best and exhaust Russia. If Russia wins, they will feel humiliated and defeated, they also know Russia doesn't want direct confrontation with them, but inciting one might help them since Russia would be overextended.
The US MIC wants it to keep going so they can keep selling weapons, but Trumps wants it to end so he can look like a hero internationally. The interests aren't the same between all the sectors inside the US, also you have to keep in mind that Trump has given up in Europe, he sees them as vassals, all he wants is to win over China to secure US hegemony.
Ukraine needs this to continue for obvious reasons since there's a 1% chance that they win Luhansk, Donetsk or Crimea back, at least they need to negotiate in favourable conditions. As a matter of fact, I would say that Ukraine hasn't moved in negotiations.
All in all, it's not about experimentation, but a sinking costs fallacy.