So far it's been small scale attacks military operation style. Unfortunately they will step up the combat after the latest move.
Really?
In November, Milley put the number of dead and wounded Russian soldiers at 100,000, and that could fall on the low side. A Pentagon official said in early August Russian casualties numbered 70,000-80,000. That was more than three months ago, and those months have shown no kindness to the Russian army. Reports suggest that newly-mobilized and ill-trained Russian units have been decimated in combat.
The Russian military has lost significant amounts of equipment. The Oryx website reports 8,000 pieces of equipment destroyed, damaged, abandoned, or captured, including some 1,500 tanks, 700 armored fighting vehicles, and 1,700 infantry fighting vehicles. Oryx advises that its numbers significantly understate the true nature of Russian losses, as it counts only equipment for which it has unique photo or videographic evidence of its fate. Others report much heavier losses. U.S. Secretary of Defense Lloyd Austin commented that the Russian military had lost “staggering” numbers of tanks and other armored vehicles, adding that Western trade restrictions on microchips would inhibit production of replacements.
As a result of these losses, Russia has had to draw on reserves, including T-64 tanks first produced nearly 50 years ago. It reportedly has turned to tanks from Belarus to replenish its losses. To augment its own munitions, Russia has had to purchase attack drones from Iran and artillery shells from North Korea. As the Russian military has drawn down stocks of surface-to-surface and air-to-surface missiles, it has used S-300 anti-aircraft missiles against ground targets. The Russian defense budget will need years to replace what the military has lost or otherwise expended in Ukraine.
Poor leadership, poor tactics, poor logistics, and underwhelming performance against a smaller and less well-armed foe have left Russia’s military reputation in a shambles. That will have an impact. Over the past decade, Russian weapons exporters saw their share of global arms exports drop by 26%. Countries looking to buy weapons likely will begin to turn elsewhere, given that Russia’s military failed to dominate early in the war, when its largely modernized forces faced a Ukrainian military armed mainly with aging Soviet-era equipment (that began to change only in the summer, when stocks of heavy weapons began arriving from the West.
https://www.brookings.edu/articles/t...ns-for-russia/