And you're sure that your black-and-white binary choice is the key to either winning or losing? Wars don't generally work that way, do they? Putin is already using cluster bombs. Ukrainians adopting them would be a serious escalation. Putin has the ability to escalate in plenty of other ways. You think that escalation wins wars? Well we could always use nukes...

Weapons that can put civilians in harm's way for decades after the war ends are simply immoral and should not be used. Why do you think we want to rid ourselves of chemical and biological weapons?