Ukraine and Russia both lack the military assets to mount major offensives against each other, the Pentagon’s intelligence agency said in new assessments that suggests the two sides are headed toward stalemate.

The Defense Intelligence Agency assessments conclude that Ukraine still doesn’t have the munitions to match Russia’s ability to fire some 10,000 artillery rounds a day, even after the U.S. Congress unlocked fresh military aid in April. Ukrainian forces remain capable of defensive operations but won’t be able to launch large-scale counteroffensives for at least six months.

Russia, on the other hand, has adopted a strategy of exhausting Ukraine and will be able to maintain a buffer zone its troops captured — but doesn’t have enough strength "to threaten a deeper advance into Ukrainian-held territory, such as Kharkiv city,” said DIA in one observation.