The Battle for the Donbas ‘Fortress Belt’
The strategic focus of current military operations has shifted toward the so-called “fortress belt” in the Donbas region. This line of defense is critical for the stability of the eastern front, with Russian forces currently targeting key urban centers including Sloviansk, Kramatorsk, and Kostiantynivka.
According to reports from Valery Gerasimov, the Chief of the General Staff of the Russian Armed Forces, Russian units are now positioned approximately 7-12 km from Sloviansk, and Kramatorsk. Active combat is reportedly taking place within certain zones of Kostiantynivka.
The push into these cities represents a broader effort to secure the Donbas, an area where Russia estimates it already controls approximately 90% of the territory. The outcome of these engagements will likely determine the long-term viability of the Ukrainian defensive line in the east.
Expanding Strategic ‘Security Zones’
Beyond the Donbas, military trends indicate a push to establish “security zones” in northern and north-eastern regions. Russian forces are advancing in Sumy to the north and Kharkiv to the north-east.
These maneuvers are designed to create a buffer that protects Russian-controlled areas from cross-border strikes and stabilizes the flank. This expansion suggests a strategy of incremental territorial gains intended to consolidate control over the eastern and southern corridors.
Currently, Russian estimates suggest control over roughly 75% of the Zaporizhzhia and Kherson regions, alongside various zones in the Mykolaiv and Dnipropetrovsk regions.
The War of Numbers: Territorial Claims and Information Warfare
A significant trend in the current conflict is the widening gap between territorial claims, highlighting a sophisticated layer of information warfare. The disparity in data provides a glimpse into how both sides manage the narrative of progress and failure.
Russian leadership claims that 80 settlements and over 1,700 square kilometers of territory—roughly 0.28% of Ukraine—have been captured since the start of the year. Conversely, pro-Ukrainian maps suggest a much slower advance, estimating only about 600 square kilometers (0.1%) have been taken in the same period.
This conflict of data extends to counter-offensive reporting. While Russian sources claim that over 170 Ukrainian counterattacks between February and March were unsuccessful, resulting in losses of more than 3,000 men and 160 vehicles, they simultaneously accuse the Ukrainian command of using disinformation to claim the recovery of 480 square kilometers of land.
Attrition and the Cost of Offensive Operations
The current trajectory points toward a grueling war of attrition. The high number of reported counterattacks and the subsequent loss of manpower and equipment indicate that neither side is achieving a decisive breakthrough, despite incremental shifts in the front line.
Pro-Ukrainian data indicates that Russia currently controls 116,793 square kilometers, or approximately 19.35% of Ukraine, including the Crimea peninsula. However, the reported slowing of the Russian advance this year suggests that the “fortress belt” may prove more resilient than anticipated.
For more insights on regional stability, witness our analysis on the evolution of eastern front defenses.
Frequently Asked Questions
What is the ‘fortress belt’ in Donbas?
It is a line of heavily fortified cities, including Sloviansk, Kramatorsk, and Kostiantynivka, that serve as a primary defensive barrier for Ukrainian forces in eastern Ukraine.
How much of Ukraine does Russia currently control?
Pro-Ukrainian maps estimate Russian control at 116,793 square kilometers, which is approximately 19.35% of the national territory.
Who is Valery Gerasimov?
He is the Chief of the General Staff of the Russian Armed Forces and First Deputy Minister of Defense, appointed to the role in November 2012.
