Russia's main offensive phase continues in Luhansk Oblast but lacks reserves to increase scale or intensity.

Russia probably does not have sufficient uncommitted reserves to increase the scale or intensity of the offensive this winter.

Russian conventional ground forces are generally deploying and fighting in normal doctrinal formations and units, rather than in battalion tactical groups or other ad hoc structures.

The observed absence of several critical tank units suggests that the Russian military continues to struggle to replace equipment, especially tanks, lost during previous failed offensive operations.

Russian forces launched 62 attacks from rocket salvo systems that day.

The Institute for the Study of War's Feb. 19 daily assessment notes that the major phase of Russian offensive operations in Luhansk Oblast is underway, and Russia likely lacks sufficient uncommitted reserves to dramatically increase the scale or intensity of the offensive this winter.

Russian occupiers are trying to push through Ukrainian defenses in the Kreminna direction and are actively using armored vehicles and infantry.