Riley Bailey, Christina Harward, Nicole Wolkov, Grace Mappes, and Frederick W. Kagan

September 18, 2023, 9:00pm 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 2:00pm ET on September 18. ISW will cover subsequent reports in the September 19 Russian Offensive Campaign Assessment.

Ukraine’s liberation of Klishchiivka and Andriivka south of Bakhmut may have degraded the Russian defense in the area south of Bakhmut and could have rendered combat ineffective as many as three Russian brigades according to Ukrainian military officials. Ukrainian Ground Forces Commander Colonel General Oleksandr Syrskyi stated on September 18 that Klishchiivka (7km southwest of Bakhmut) and Andriivka (10km southwest of Bakhmut) were important elements of the Russian Bakhmut-Horlivka defensive line that Ukrainian forces “breached.”[1] Ukrainian Eastern Group of Forces Spokesperson Captain Ilya Yevlash stated on September 17 that Ukraine’s liberation of Klishchiivka will allow Ukrainian forces to control Russian ground lines of communication (GLOCs) supplying the Russian force grouping in the Bakhmut area — likely referring to Ukrainian forces’ ability to establish fire control over the T0513 Bakhmut-Horlivka highway.[2] ISW is currently unable independently to evaluate the strength and extent of the Russian defensive fortifications in the Bakhmut area, although Russian forces have likely fortified their defense lines near Bakhmut less heavily than they did in southern Ukraine. Russian forces south of Bakhmut are also likely battle-weary from the recent efforts to hold Klishchiivka and Andriivka, and the Ukrainian capture of two settlements defending a key Russian GLOC supporting Bakhmut indicates that these forces will likely struggle to replenish their combat strength and defend against any further Ukrainian offensive activity south of Bakhmut. There are no immediate indications that the liberation of Klishchiivka and Andriivka will portend a higher rate of Ukrainian advance south of Bakhmut, however, and the Russian defense of positions west of the T0513 will likely continue to present challenges for Ukrainian forces in the area.

The Ukrainian liberation of two villages that Russian forces were fighting hard to hold could correspond with the severe degradation of the Russian units defending them, as Ukrainian advances in western Zaporizhia Oblast appear to correspond with the significant degradation of defending Russian units and formations in that sector of the front. Russian forces defending in western Zaporizhia Oblast since the start of the counteroffensive have done so largely without operational-level unit rotations and have likely suffered compounding losses.[3] Elements of the Russian 42nd Motorized Rifle Division’s 71st, 70th, and 291st Motorized Rifle Regiments (58th Combined Arms Army, Southern Military District)routinely repelled Ukrainian assaults and engaged in various “combat clashes,“ including limited engagements and some counterattacks, during the first phase of the counteroffensive from June to August 2023.[4] In mid-to-late August, Ukrainian forces began breaking through the initial Russian defensive layer that these elements of the 42nd Motorized Rifle Division had spent considerable amounts of manpower, personnel, and effort to hold.[5] Russian reporting and footage suggest that many of these elements of the 42nd Motorized Rifle Division have since withdrawn to positions behind a subsequent Russian defensive layer between Verbove (18km southeast of Orikhiv) and Solodka Balka (20km south of Orikhiv) and now mainly shell advancing Ukrainian units.[6] The absence of recent reports and footage of these elements participating in combat engagements in western Zaporizhia Oblast suggests that casualties sustained during the first phases of the Ukrainian counteroffensive rendered them combat ineffective. Elements of the 70th Motorized Rifle Regiment reportedly temporarily withdrew to a rear area during the Ukrainian breakthrough and returned to frontline positions in early September, suggesting that Ukrainian advances had degraded this unit enough to compel the Russian command to give it time to refit in the rear — which would be one of the very few unit rotations ISW has observed on this sector of the front.[7] Elements of the 810th Naval Infantry Brigade (Black Sea Fleet), which also held forward positions at the initial Russian defensive layer during the earlier phases of the counteroffensive, similarly appear to be deployed further behind the Russian defensive layer ahead of the current Ukraine advance.[8] Elements of the 810th Naval Infantry Brigade reportedly engaged in close combat during the Ukrainian push through Robotyne (10km south of Orikhiv), and Russian milbloggers maintain that some elements of the unit hold positions near the southern outskirts of Robotyne.[9]

Ukrainian counteroffensive operations may have resulted in the particularly severe degradation of critical elements of the Russian elastic defense in western Zaporizhia Oblast. Elements of the Russian 22nd and 45th Separate Spetsnaz Brigades appeared to be responsible for counterattacking against significant Ukrainian advances in the Robotyne area during the earlier phases of the counteroffensive and likely suffered heavy losses in these operations.[10] Russian reporting and footage of the Robotyne area in recent weeks has largely omitted mention of these Spetsnaz brigades, suggesting that this degradation may have severely impacted their ability to continue counterattacking. A prominent milblogger claimed that elements of the 45th Spetsnaz Brigade were still operating near the frontline as of September 12, however.[11] Elements of the Russian 7th Guards Mountain Airborne (VDV) Division that laterally deployed to the Robotyne area in mid-August during the Ukrainian breakthrough now appear to be responsible for conducting counterattacks against the most forward advances of the Ukrainian breach.[12] Russian sources routinely claim that VDV elements, which may include elements of the 76th Guards VDV Division that also laterally redeployed to the area, repel Ukrainian assaults and conduct counterattacks near Robotyne[13] The degradation of the elements of the 22nd and 45th Separate Spetsnaz Brigades initially responsible for counterattacking in the Robotyne area likely prompted the Russian command to laterally redeploy these elements of the 7th and 76th VDV Divisions to assume responsibility for counterattacking. The Russian elastic defense requires one echelon of Russian forces to slow a Ukrainian tactical advance while a second echelon of forces rolls back that advance through counterattacking. Counterattacking requires significant morale and relatively high combat capabilities, and the Russian military appears to rely on relatively elite VDV units and formations for this undertaking, possibly at the expense of heavily degrading these forces.[14]

ISW has not directly observed the level of degradation among the Russian units referenced above and it is possible that some have suffered heavier losses than others. It is also possible that the Russians have used the arrival of elements of the 76th and 7th VDV Divisions to conduct belated unit rotations of their tired frontline units. The current battlefield geometry between the Ukrainian advance and current Russian defensive positions may also be contributing to the apparent absence of these likely degraded units from combat engagements, as the gap between Ukrainian advances and Russian defensive positions may result in less direct combat engagements. Ukrainian forces may engage these units in more direct combat as they further advance into and past the current Russian defensive layer. It is thus too soon to assess with high confidence that the initial defenders in this sector have been rendered combat ineffective, but the evidence currently available points in that direction.

Recent Ukrainian advances south of Bakhmut may correspond with the similar degradation of defending Russian units in the area. Syrskyi stated that Ukrainian forces completely destroyed the combat capabilities of elements of the 72nd Motorized Rifle Brigade (3rd Army Corps), the 31st Guards VDV Brigade, and the 83rd Guards VDV Brigade during the liberation of Andriivka and Klishchiivka.[15] Russian “Vostok” Battalion commander Alexander Khodakovsky’s claim that the 31st VDV Brigade commander has been killed supports this statement.[16] The 72nd Motorized Brigade has likely been rendered combat ineffective, although the exact level of losses among the two VDV brigades remains unclear.[17] These VDV elements were involved in counterattacking and attempting to roll back Ukrainian advances around Bakhmut — similar to the way that VDV elements operate in western Zaporizhia Oblast — and likely suffered heavy losses.[18] If recent Ukrainian advances south of Bakhmut resulted in the destruction of the 31st and 83rd VDV brigades’ combat capabilities, then the Russian command will likely laterally redeploy elements of another relatively elite formation to maintain critical elements of the Russian defense south of Bakhmut. Ukrainian counteroffensive operations have pinned elements of two VDV divisions and another VDV brigade in addition to the 83rd and 31st in the Bakhmut direction, and the Russian command may decide to conduct tactical redeployments to make up for the reported losses among the 83rd and 31st VDV brigades.[19] Lateral redeployments from elsewhere in Ukraine or substantial tactical redeployments of other VDV elements in the Bakhmut area would therefore indicate that recent Ukrainian advances have resulted in significant Russian losses.

Russian forces conducted a series of Shahed-131/136 drone and cruise missile strikes on coastal and rear areas of Ukraine on the night of September 17-18. Ukrainian officials reported that Russian forces launched 24 Shahed drones from Krasnodar Krai and occupied Crimea and 17 Kh-101/555/55 air-launched cruise missiles from Tu-95MS strategic bombers that took off from Volgograd Oblast.[20] Ukrainian officials reported that Ukrainian forces shot down 18 drones and all 17 missiles.[21] The Ukrainian Air Force noted that the Russian drone strike targeted Mykolaiv and Odesa oblasts.[22] Russian sources claimed that Russian drones hit ports in Odesa Oblast and that the Russian missiles targeted the Starokostyantyniv airfield in Khmelnytskyi Oblast.[23]

An organization with alleged ties to Russian First Deputy Presidential Chief of Staff Sergey Kiriyenko is reportedly responsible for disseminating pro-war propaganda and false information about Ukraine to prominent figures in the Russian information space. Russian opposition news outlets Meduza, Vazhnye Istorii, and the Bell reported on September 13 that the non-profit organization “Dialog” created multiple popular Telegram channels to increase pro-Russian reporting on the war in Ukraine at the start of Russia’s full-scale invasion and has subsequently been distributing false information about the war in Ukraine to prominent figures in the Russian information space, including Kremlin propagandist Vladimir Solovyov, prominent milbloggers, and popular news aggregators.[24] Dialog is also reportedly affiliated with pro-Russian Telegram channels that mimic Ukrainian channels.[25] Dialog reportedly advised unspecified individuals in the Russian Ministry of Defense (MoD) to issue a “tough” and “prompt” response following increasing reports of a lack of ammunition and provisions among Russian mobilized personnel in Ukraine.[26] Dialog-affiliated sources also reportedly disseminated negative reports about deceased Wagner Group financier Yevgeny Prigozhin while Wagner forces were fighting in Ukraine.[27] The Russian Ministry of Digital Development reportedly transferred 6.5 billion rubles (about $67.7 million) to Dialog in 2022, and its deputy general director, Vladimir Tabak, reportedly has ties to Kiriyenko.[28] ISW has consistently observed some Russian sources making similar claims with similar language on the same days, which may suggest that some Russian sources receive information from the same source. Kiriyenko’s reported affiliation with Dialog is consistent with ISW’s assessment that some Russian siloviki and senior military commanders control various Telegram channels intended to further their individual objectives in the Russian information space.[29]

Russian Minister of Foreign Affairs Sergey Lavrov met with Chinese Foreign Minister Wang Yi in Moscow on September 18. Lavrov stated in his opening remarks that the world is undergoing “tectonic shifts” and reiterated boilerplate rhetoric on the importance and previous successes of Russian-Chinese cooperation.[30]

Imprisoned ardent nationalist and former Russian officer Igor Girkin issued a direct criticism of Russian President Vladimir Putin to rally supporters to his cause. Girkin, via his lawyer Alexander Molokhov, posted a statement on September 18 dated September 15 that justifies Girkin’s opposition to Putin.[31] Girkin humorously answered the question “why Strelkov [Girkin] has gone crazy” for asserting that he is “better than Putin.” Girkin claimed that the “Troubles” (likely referencing the Time of Troubles in 17th century Russia that preceded the rise of the Romanov dynasty) have begun in Russia and that the Kremlin’s attempts to address the direst issues have failed, so the current “bureaucratic-oligarchic system” will eventually “collapse.” Girkin claimed that it is his “duty” to try to unite other patriots to be a suitable alternative but acknowledged that he may lack the resources to succeed or may have begun his initiative too early. Girkin expressed hope that his efforts will inspire others to “act as leaders of the national-patriotic movement” because “it is too late to be afraid and wait” as it is the “eve of the collapse of Russian statehood.”

Key Takeaways:

• Ukraine’s liberation of Klishchiivka and Andriivka south of Bakhmut may have degraded the Russian defense in the area south of Bakhmut and could have rendered combat ineffective as many as three Russian brigades according to Ukrainian military officials.
• Ukrainian counteroffensive operations may have resulted in the particularly severe degradation of critical elements of the Russian elastic defense in western Zaporizhia Oblast.
• Recent Ukrainian advances south of Bakhmut may correspond with the similar degradation of defending Russian units in the area.
• Russian forces conducted a series of Shahed-131/136 drone and cruise missile strikes on coastal and rear areas of Ukraine on the night of September 17-18.
• An organization with alleged ties to Russian First Deputy Presidential Chief of Staff Sergey Kiriyenko is reportedly responsible for disseminating pro-war propaganda and false information about Ukraine to prominent figures in the Russian information space.
• Russian forces conducted offensive operations along the Kupyansk-Svatove-Kreminna line, near Bakhmut, along the Avdiivka-Donetsk City line, in the Donetsk-Zaporizhia Oblast border area, and in western Zaporizhia and advanced in some areas on September 18.
• Ukrainian forces conducted offensive operations in at least two sectors of the front and advanced in western Zaporizhia on September 18.
• Some Russian sources claimed that former Wagner Group personnel are working closely with Rosgvardia (Russian National Guard) in order to return fighting in Ukraine.

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

Encouraging reports as always of advances and Russian units withdrawing with heavy damage incurred over the past months fighting.  The problem of course is that while these units have been forced to withdraw to rear positions to rest and refit, the slow deliberate pace of the Ukrainian advance has allowed them plenty of time and space to withdraw in good order, but also to be replaced by reinforcements, leaving the line as strong as ever.  While that is a good thing if you are actually seeking to draw available reinforcements to that part of the line and fix them in place, this implies an objective either of continuing a long attritional battle to destroy them in turn (meaning no breakthrough this year and the war probably extending to at least 2025), or an attack elsewhere at points weakened because of troops withdrawals, or an intention to engage those reinforcing forces in intense battle and destroy them in place.  This last seems to run counter to all Ukrainian efforts in the war so far to preserve manpower and equipment, leaving the two other options - of the two at the moment the attritional battle seems the more likely, but if we see a sudden ramping up of operations at several points to draw attention and fix reserves this may indicate that a breakthrough attack is imminent elsewhere.