Riley Bailey, Nicole Wolkov, Angelica Evans, Christina Harward, and Mason Clark

September 3, 2023, 6:05pm ET 

Click here to see ISW’s interactive map of the Russian invasion of Ukraine. This map is updated daily alongside the static maps present in this report.

Click here to access ISW’s archive of interactive time-lapse maps of the Russian invasion of Ukraine. These maps complement the static control-of-terrain map that ISW produces daily by showing a dynamic frontline. ISW will update this time-lapse map archive monthly.

Note: The data cut-off for this product was 12pm ET on September 3. ISW will cover subsequent reports in the September 4 Russian Offensive Campaign Assessment.

Ukrainian military officers offered notably frank and direct commentary about the prospects of further Ukrainian advances in western Zaporizhia Oblast and indicated that the series of prepared Russian defensive positions immediately ahead and further south of the Ukrainian advance may be less challenging to Ukrainian forces. Ukrainian Tavriisk Group of Forces Commander Brigadier General Oleksandr Tarnavskyi, who commands the Ukrainian grouping in southern Ukraine, discussed Ukraine’s counteroffensive in an interview with The Guardian on September 2.[1] Tarnavskyi stated that Ukrainian forces have decisively breached Russian forces’ “first line of defense” and that he expects faster Ukrainian gains as Ukrainian forces press on a weaker “second line” of defense.[2] Ukrainian forces have advanced up to the next series of prepared Russian defensive positions in certain areas in the Robotyne area in western Zaporizhia Oblast, although many Russian sources assert that these positions are the first, not the second, defensive layer in a multi-echeloned Russian defense in southern Ukraine.[3] Ukrainian officials and Russian milbloggers are using different terminology to describe the same positions. Russian sources characterize the first series of positions that Ukrainian forces have previously breached as a forward line without giving it an ordinal number, and the series Ukrainian forces are currently approaching as the first main line of defenses — while Ukrainian forces characterize these positions as Russia’s second line of defenses.

Tarnavskyi stated that Russian forces devoted 60 percent of their time and resources into building the series of defensive positions that Ukrainian forces have now breached and only 20 percent each to the two subsequent defensive layers further south.[4] This breached series of Russian defensive positions consists of a system of interconnected Russian trenches and dugouts guarded by anti-tank ditches and dense minefields, and Tarnavskyi’s reporting supports ISW’s previous observation that Russian forces may have not extended similarly challenging preparations throughout subsequent series of defensive layers, particularly regarding the density of minefields.[5] Russian defensive positions are not uniform in strength across the frontline in western Zaporizhia Oblast, and Tarnavskyi’s description of weaker Russian defensive positions may refer only to the immediate Robotyne area. Tarnavskyi also commented on the weight of Ukrainian efforts elsewhere in southern Ukraine and suggested that the Ukrainian advance in western Zaporizhia Oblast is an operational priority.[6]

Ukrainian military officials particularly noted that advancing Ukrainian forces can operate more freely in areas with sparser Russian minefields. Ukrainian Tavriisk Group of Forces Spokesperson Oleksandr Shtupun stated on September 3 that minefields near the next series of Russian defensive positions are less dense than the initial defensive layer that Ukrainian forces advanced through.[7] Shtupun and Tarnavskyi both stated that Ukrainian forces are deploying more vehicles in these areas and maneuvering more equipment and troops towards the next Russian defensive layer, but they acknowledged that minefields will still present a significant threat.[8] Tarnavskyi stated that Ukrainian forces spent more time on mine clearing than they expected to at the beginning of the counteroffensive and that consistent Russian artillery and aviation fire forced Ukrainian infantry to conduct mine clearing only at night.[9] Shtupun added that heavy minefields forced Ukrainian breaching operations onto narrow paths — the exact intent of minefields under Russian defensive doctrine.[10] Ukrainian forces may now be better positioned to maneuver more freely in the tactical rear of the breached Russian defensive layer. Tarnavskyi’s description of the Russian minefields may pertain only to the immediate Robotyne area, and Ukrainian forces may encounter heavily dense minefields at certain sections of subsequent series of Russian defensive positions. Although Ukrainian forces certainly face further hard fighting regardless, Tarnavskyi characterized Ukrainian forces as having successfully broken through the most difficult Russian defenses.

Ukrainian military officials noted that the strength of the next series of Russian defensive positions around Robotyne will likely depend on Russian force composition in the area. Tarnavskyi stated that Ukrainian forces in the Robotyne area are destroying the Russian units that provide cover for retreating Russian forces and that Russian forces are operating in defensive “patches,” likely referring to strongpoints rather than a continuous defensive line.[11] Ukrainian Presidential Advisor Oleksandr Rodyansky stated that upcoming Russian defenses are not as well protected.[12] Shtupun also noted that Russian forces are deploying reserves of unknown quality to defend in the area.[13] Shtupun is likely referencing the lateral redeployment of previously degraded elements of the 7th Guards Airborne and 76th Guards Air Assault (VDV) Divisions to the Robotyne area from elsewhere in the theater.[14] Tarnavskyi stated that Russian forces are deploying reserves from both Ukraine and within Russia, likely referencing Ukrainian Main Military Intelligence (GUR) Head Kyrylo Budanov’s statement on September 1 that the Russian military deployed elements of a newly created “reserve army” (the 25th CAA) to allow Russian forces to conduct further lateral redeployments to strengthen the defense in southern Ukraine.[15] Tarnavskyi noted that Russian forces will run out of their best soldiers sooner or later, giving Ukrainian forces an impetus to attack more often.[16] Tarnavskyi acknowledged that Ukrainian forces are also losing their “strongest and best” and must therefore concentrate on certain areas of the front as a result.[17] Shtupun optimistically noted that additional Ukrainian successes will allow Ukrainian forces to commit more personnel to the ongoing Ukrainian breach of Russian defenses in western Zaporizhia Oblast.[18]

Ukrainian forces continued counteroffensive operations and advanced near Bakhmut and in western Zaporizhia Oblast on September 3. The Ukrainian General Staff reported that Ukrainian forces conducted offensive operations in the Melitopol direction (western Zaporizhia Oblast).[19] Geolocated footage published on September 2 and 3 indicates that Ukrainian forces control southern Klishchiivka.[20] Ukrainian Tavriisk Group of Forces Spokesperson Oleksandr Shtupun stated that Ukrainian forces achieved unspecified successes in the direction of Verbove (18km southeast of Orikhiv).[21]

Several Russian sources claimed that Ukrainian forces continue to operate on the left (east) bank of the Dnipro River in occupied Kherson Oblast. Generally reliable Russian milbloggers have consistently claimed since August 30 that Ukrainian forces maintain positions on the left bank of the Dnipro River northwest of Pidstepne and in the Antonivsky Bridge area.[22] One milblogger claimed that Ukrainian forces have been able to transfer supplies and personnel to positions on the left bank during the past week.[23] Another milblogger claimed that units of mobilized personnel and volunteers are defending in the Kherson direction after unspecified Airborne (VDV) elements departed for Zaporizhia Oblast.[24] The milblogger is likely referring to elements of the 7th Guards Mountain VDV Division, which ISW observed deploying from the Kherson direction to the Robotyne area in Zaporizhia Oblast in late August.[25] The Kherson Oblast area is likely relatively poorly defended if the milblogger’s claims of mobilized personnel and volunteers replacing VDV elements are true.  

Russian forces conducted a series of drone strikes targeting Ukrainian port infrastructure in Odesa Oblast on September 3. Ukrainian military sources reported that Ukrainian air defenses downed 22 of the 25 Shahed drones that Russian forces launched from Krasnodar Krai and occupied Crimea.[26] Most Russian milbloggers claimed that Russian drones struck Ukrainian port infrastructure in Reni, Odesa Oblast.[27] Several Russian sources, including the Russian Ministry of Defense (MoD), claimed that Russian strikes primarily targeted Ukrainian military fuel storage facilities near the ports.[28] Russian sources claimed that Russian Shahed drones also struck port infrastructure in Izmail, Odesa Oblast.[29]

The Russian military appears to be recruiting personnel at scale through ongoing crypto-mobilization efforts, although the quality and allocation of these new servicemembers remains unclear. Russian Security Council Deputy Chairperson Dmitry Medvedev stated on September 3 that 280,000 people signed contracts with the Russian Ministry of Defense (MoD) since the start of 2023.[30] Medvedev noted that this figure includes individuals formerly in the Russian military reserve or who previously fought as volunteers. Russian State Duma Deputy Andrey Gurulev stated on September 3 that Russian officials intend to sign a total of 420,000 contracts before the end of 2023.[31] Russian Defense Minister Sergei Shoigu announced on June 10 that all volunteer formations were required to sign military contracts with the Russian MoD by July 1, so Medvedev and Gurulev’s figures likely include many volunteers that have already been fighting in Ukraine; however, ISW cannot independently confirm how many of these claimed 280,000 personnel are entirely new to the war in Ukraine.[32] Regardless, the Russian military is continuing to successfully recruit for the war in Ukraine at scale. The level of training and combat experience of these contract personnel likely varies, as the Russian military advertises contracts ranging from a few months to two years.[33] These contract soldiers are likely less skilled and experienced than the Russian military’s pre-war number of “kontraktniki,” professional long-service soldiers. Contract soldiers received greater training and occupied key positions (such as technicians and vehicle crews) in Russian units, with relatively elite units such as Airborne (VDV) formations having a higher proportion of kontraktniki.[34] Many units suffered heavy losses among kontraktniki at the beginning of the war and have unlikely been able to reconstitute with the same quality of personnel.[35] State Duma Deputy Viktor Sobolev stated that the Russian General Staff determined the 420,000 figure as necessary for the creation of new formations and units, likely referencing Defense Minister Shoigu’s intent to form many new Russian army formations.[36] However, the Russian military faces the competing priorities of establishing long term new formations and rushing personnel to the front in Ukraine. As ISW previously reported, new formations earmarked for reserves have reportedly already deployed to the frontline ahead of schedule.[37]

Ukrainian President Volodymyr Zelensky announced on September 3 that he dismissed current Ukrainian Defense Minister Oleksii Reznikov and intends to replace him with Rustem Umerov.[38] Umerov is currently the chairman of Ukraine’s State Property Fund.[39] Zelensky stated that he believed the Ministry of Defense “needs new approaches and other formats of interaction with both military and society at large” and that he hopes the Ukrainian Verkhovna Rada will confirm Umerov this week.[40]

Key Takeaways:

• Ukrainian military officers offered notably frank and direct commentary about the prospects of further Ukrainian advances in western Zaporizhia Oblast and indicated that the series of prepared Russian defensive positions immediately ahead and further south of the Ukrainian advance may be less challenging to Ukrainian forces.
• Ukrainian military officials particularly noted that advancing Ukrainian forces can operate more freely in areas with sparser Russian minefields.
• Ukrainian forces continued counteroffensive operations and advanced near Bakhmut and in western Zaporizhia Oblast on September 3.
• Several Russian sources claimed that Ukrainian forces continue to operate on the left (east) bank of the Dnipro River in occupied Kherson Oblast.
• Russian forces conducted a series of drone strikes targeting Ukrainian port infrastructure in Odesa Oblast on September 3.
• The Russian military appears to be recruiting personnel at scale through ongoing crypto-mobilization efforts, although the quality and allocation of these new servicemembers remain unclear.
• Russian forces conducted offensive operations along the Kupyansk-Svatove-Kreminna line, near Bakhmut, along the Avdiivka-Donetsk City line, in western Donetsk, in the western Donetsk–eastern Zaporizhia border area, and in western Zaporizhia Oblast and advanced in some areas on September 3.
• Russian law enforcement is patrolling and guarding polling stations in occupied Ukraine to prevent citizens from expressing opposition to the elections and recording the voting process.

https://www.understandingwar.org/backgrounder/russian-offensive-campaig…

Good news from the front as the Ukrainians continue their preparations for forcing the second line, will be interesting to see what the Russians do when they are through - maintain positions on either flank and risk encirclement, or withdraw to a new defence line closer to the coast.  Hard to see any easy options for them, but that's not to say the Ukrainians have an easy job - they have defended plenty of cities but not yet themselves had to fight into a defended urban area.  The Russian recruitment figures seem very high, but if they are accurate it does bring home the scale of the problem the Ukrainians face - these are not the conscripts of the last winter who were ill-trained and vulnerable and thrown into combat to die in droves, the position is far more stable and training and experience levels in combat units much higher.  If they can be properly equipped then just their numbers alone, and the casualties that Ukraine will inevitably take in killing them, make them a formidable obstacle.  However, so far in the war quality still seems to be winning over quantity - lets hope that goes on.