The Uncertain Future of Ukraine's Counteroffensive.

As Ukraine launches its counteroffensive against Russian occupiers, the United States and its allies are hoping for a rapid retaking of strategically significant territory. The administration is reluctant to say what would constitute a Ukrainian success against formidable Russian defenses, but the stakes for President Biden are high. Anything less than a decisive victory will present uncomfortable questions they are not yet prepared to answer. The outcome of limited gains in Ukraine would provide grist for all of those critiques and further cloud the already murky waters of NATO and European Union debate over future posture toward both Ukraine and Russia.