Nearly a century later, Russian planners still view Deep Battle as a foundational concept. Yet the war in Ukraine has exposed the performance gap between theory and practice.

Deep Battle in Russian Military Thought

Deep Battle was designed as a holistic operational approach: massed firepower, rapid penetration, and exploitation by mobile formations. It required tight coordination, robust logistics, and the ability to sustain momentum across multiple echelons. Soviet forces demonstrated aspects of this during World War II, and the concept remained embedded in Russian doctrine long after.

Modern Russian operations—at least on paper—still aspire to this model. Analysts note that Russian commanders have attempted to regain maneuver by applying Deep Battle principles, seeking rapid breakthroughs and deep strikes to disorganize Ukrainian defenses. However, the conditions required for successful Deep Battle are far more demanding than the theory suggests.

Why Deep Battle Has Struggled in Ukraine

Several factors have undermined Russia’s ability to execute Deep Battle effectively. Logistical fragility has plagued Russian operations, as sustaining supply to fast-moving units proved difficult; forces entering Ukraine in 2022 quickly outran their logistics, leading to stalled advances and exposed columns. Scholars argue that this logistical weakness fundamentally compromised Russia’s ability to maintain operational tempo. Additionally, Ukrainian resilience and adaptability have presented unexpected challenges. Ukrainian forces have been far more agile and technologically integrated than Russian planners anticipated, employing precision fires, dispersed command structures, and Western intelligence support to blunt Russian attempts at operational shock and interrupting supply lines and replacement equipment. Their use of drone and counter-drone technology exemplifies adaptive learning that has already been noted and copied by other state militaries.

Russia’s attempts at Deep Battle are further hindered by insufficient force quality and added maneuver complexity, as the doctrine relies on well-trained, coordinated echelons. Russia’s reliance on mobilized troops, fragmented command structures, and heavy attrition has made synchronized deep operations difficult to sustain. The loss of air superiority has limited Russia’s ability to shape the battlefield making the battlefield more complex. As intended by doctrine, Soviet Deep Battle assumes overwhelming air support to suppress enemy depth, but contested airspace in Ukraine has prevented this crucial element.

Where Russia Has Adapted

Despite these challenges, Russia has applied Deep Battle concepts in modified ways. In adapting the principles of Deep Battle to modern conflict, Russia has focused on targeting Ukrainian infrastructure with long-range strikes. This campaign has prioritized attacks on energy systems and logistics nodes, aiming to disrupt Ukrainian depth and sustain pressure even without accompanying maneuver. By striking critical assets far from the front lines, Russia attempts to weaken Ukraine’s ability to resist and maintain its war effort.

Rather than achieving rapid breakthroughs as originally envisioned by Deep Battle doctrine, Russia has shifted to a strategy of incremental, attritional “deepening.” This approach relies on massed artillery and slow, grinding advances to steadily erode Ukrainian defenses. The result is a war of attrition where progress is measured in small territorial gains instead of dramatic operational shifts, demonstrating an adaptation of Deep Battle’s objectives without its characteristic momentum.

In addition to these methods, Russian military planners and observers continue to pursue efforts to reconstitute maneuver forces. Despite ongoing challenges, such as limited operational success, attempts are being made to rebuild the capacity for operational-level breakthroughs. These efforts underscore a persistent desire within Russian strategy to reclaim the maneuver warfare and deep operational reach that are central to Deep Battle theory, even as practical limitations remain.

The Role of Nuclear Weapons in Deep Battle

Vladimir Putin has repeatedly issued veiled or explicit warnings regarding the potential for Russian nuclear first use concerning the possibility of Russian nuclear first use in response to perceived unacceptable threats. This stance is further reflected in Russian military exercises, which have frequently included simulated launches with tactical nuclear weapons systems. However, it is important to note that some Soviet assessments during the Cold War adopted a realistically pessimistic outlook on the conduct of military operations in a nuclear environment, recognizing the immense challenges such conditions would impose.

Taken together, these perspectives highlight the duality in Russian strategic thinking: while nuclear signaling and preparation remain integral to Russia’s military posture, there is also an awareness—rooted in historical experience—of the profound difficulties associated with waging war in a nuclear-affected battlespace.

Implications for the Future of the War

Understanding Russia’s attachment to Deep Battle helps explain both its ambitions and its limitations. Russia will continue seeking opportunities for operational breakthroughs, even if conditions rarely allow them. The concept remains deeply embedded in Russian military culture. At the same time, Ukraine’s strategy of disrupting Russian logistics and command nodes directly targets the prerequisites of Deep Battle, making it harder for Russia to generate momentum. If Russia can rebuild its logistics, improve training, and integrate drones and electronic warfare more effectively, it may regain the ability to conduct deeper operations—but this remains uncertain. The war is likely to remain attritional because neither side currently possesses the combination of mass, mobility, and air dominance required for true Deep Battle.

Conclusion

Deep Battle remains a conceptual framework and historical marker for understanding Russian military behavior. But the war in Ukraine has shown that doctrine alone cannot compensate for structural weaknesses, resilient opposition, and the realities of modern precision warfare. Russia’s struggle to translate Deep Battle theory into battlefield success underscores the widening gap between its strategic aspirations and its operational capabilities.

NOTE: The author provides a grateful acknowledgment that is made to David Glantz and the late Dr. Jacob Kipp for the author’s appreciation of this topic. None bear any responsibility for arguments herein.

Stephen J. Cimbala is Distinguished Professor of Political Science at Penn State Brandywine and the author of numerous works on nuclear deterrence, arms control, and military strategy.  He is a senior fellow at NIDS and a recent contributor to the Routledge Handbook of Soviet and Russian Military Studies edited by Dr. Alexander Hill (Routledge: 2025).

The Russian View of Deep Battle: Implications for the War in Ukraine was originally published on Global Security Review.

In this electrifying episode, the NIDS crew pull back the curtain on one of the most game-changing technologies in national defense: micro nuclear reactors.

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131 Micro Reactors: Reliable Energy and National Security was originally published on Global Security Review.

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2. The Geostrategic Mind of Iran
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The Weekend Gouge was originally published on Global Security Review.

As discussions of retaliation by Israel continue, the media discuss Iranian oil refineries as possible targets that might be hit. Israeli Defence minister, Yoav Gallant, stated that retaliation against Iran’s missile attacks will be “lethal and surprising.” Meanwhile, Islamic Revolutionary Guard Corps-linked social media accounts are already spreading reports that Tehran warned the United States that actions against Iranian oil refineries will lead the Islamic Republic to target oil facilities in Saudi Arabia, Azerbaijan, the United Arab Emirates, Bahrain, and Kuwait. According to a Reuters report, Iran also warned the Gulf Arab states that any use of their airspace or military bases to target Iran will be unacceptable and threatened a military response.

Iran’s Strategy

Iran’s reference to Azerbaijan as a potential target, should Israel attack Iranian oil refineries, is an indication of the Islamic Republic’s growing threat to critical energy infrastructure not only in the Middle East, but also in the South Caucasus and the Caspian Sea basin region. Azerbaijan supplies 40 percent of Israel’s energy needs and Azerbaijan’s oil and gas infrastructure is the backbone of its independence in the geopolitically tense region.

Not only does Azerbaijan meet nearly 40 percent of Israel’s demand for crude oil, Azerbaijan’s state energy giant SOCAR, alongside British Petroleum and Israel’s NewMed, was awarded a licence to explore an area to the north of Israel’s Leviathan gas field in the Eastern Mediterranean. The strong bilateral and multifaceted relations between Israel and Azerbaijan are a primary concern for Iran.

In anticipation of Israeli retaliation against the Iranian ballistic missile attacks, the Iranian media continues to make unsubstantiated claims about supposed secret Israeli military bases in Azerbaijan with a ridiculous accusation that Azerbaijan is one of the origins of sabotage against the Islamic Republic. Talking about possible Israeli retaliation against Iranian oil facilities, Iranian diplomat Abbas Mousavi falsely claimed in an interview to Tejarat News that Israel deployed many planes to Azerbaijan.

In fact, since Hamas launched the brutal terrorist attacks against Israel in October 2023, Iran’s main goal is the consolidation of the members of the Organisation of Islamic States to achieve an economic blockade and diplomatic isolation from Israel. Iranian Supreme leader Ayatollah Khamenei repeatedly called on Arab and Muslim countries to impose an oil embargo on Israel. Iranian officials frequently repeat similar calls showing Tehran’s agenda behind the Hamas attacks, which aimed to disrupt economic, political, and diplomatic relations between the State of Israel and Muslim-majority nations.

Iran’s multidimensional strategy behind the Hamas attacks was based on several ambitious goals, including preventing possible normalisation between Israel and Saudi Arabia and other Arab states; derailing the Abraham Accords; preventing efforts to improve strained Turkish-Israeli ties; and trying to inflict economic and diplomatic damage on Israel-Azerbaijan strategic ties. Iran’s strategy seeks to achieve multiple goals simultaneously in both the Middle East and South Caucasus.

Iranian media outlets launched coordinated propaganda attacks against Turkey and Azerbaijan for supplying crude oil to Israel via the Baku-Tbilisi-Ceyhan oil pipeline since the Hamas terrorist attacks and start of the subsequent war in Gaza. Iran-inspired, pro-Hamas Islamist, and leftist circles in Turkey staged several demonstrations where they vandalised Azerbaijani oil company, SOCAR, offices in Istanbul in an attempt to halt oil exports.

Considering the influence of the Muslim Brotherhood in Turkey, the country is a comfortable space for Iranian propaganda and hybrid activities covered by so-called Islamic narratives. Ironically, the fact that Iran is a major energy supplier to Armenia and supplied the formerly Armenian-occupied Karabakh region received no similar response from Islamists or leftists in Turkey.

Coercive Actions

Iran’s military threats against Azerbaijan increased from the end of the Second Karabakh War, when the balance of power in the South Caucasus shifted in Baku’s favor. Iran conducted several military drills near Azerbaijan’s border, putting on a show of force against the geopolitical changes in the region. In late September and early October 2021 Iran suddenly conducted military drills near Azerbaijan’s borders.

An Iranian Ministry of Foreign Affairs spokesman described the exercises as a “sovereign right,” saying, “Iran will not tolerate the presence of the Zionist regime” near its borders. Iran undertook another military provocation a year later when Tehran laid pontoon bridges across the Araz River near the Azerbaijani border and crossed the river as part of war games. In March 2023, an Iranian air force fighter jet violated Azerbaijan’s airspace. The Azerbaijani Foreign Ministry summoned Iran’s ambassador, and the Azerbaijani Defence and Foreign Ministries issued a joint statement condemning the incursion.

When Israel liquidated Mohammad Reza Zahedi, a senior commander in the Iranian Revolutionary Guard Corps-Quds Force, in Damascus in April 2024, Iranian member of parliament, Jalal Rashidi Kochi, called for strikes on an Israeli embassy in the region, preferably in Azerbaijan. Iranian attempts to target the Israeli embassy and ambassadors in Baku were also foiled on many occasions over the years; the most recent reported attempt involved the arrest of an Afghan national in July 2023. Recently Iran has enhanced its naval capabilities in the Caspian Sea and increased naval drills, including joint drills with Russia.

Iran’s Missile and Cyber Capabilities

Iran possesses numerous capabilities to threaten critical infrastructure including energy and power in the region. Among them Tehran’s ballistic missiles and cyber tools are key. Iran maintains the largest ballistic and cruise missile force in the Middle East, capable of reaching 2,500 kilometres from its borders. Moreover, these capabilities combined with Iran’s drone arsenal can overwhelm missile defence systems. Iran’s missile attacks against Saudi oil facilities in 2019 were conducted by a combination of drones and cruise missiles.

Iran has improved its offensive cyber capabilities, too, and is capable of causing localised and temporary disruption to corporate networks for days or weeks. Drilling oil wells, pumping crude oil, and loading fuel are processes where cyberattacks can cause significant disruptions. According to an FBI report released in August 2024, Iran exploited computer network vulnerabilities to infiltrate and steal sensitive technical data from organisations in Israel and Azerbaijan. In July, cybersecurity firm Check Point reported that an Iranian hacker group named Muddy Water, affiliated with Iran’s Ministry of Intelligence and Security, increased its cyber activities against targets in Azerbaijan, Israel, Portugal, Saudi Arabia, and Turkey.

Securing Critical Infrastructure

Overall, considering Azerbaijan’s key role in the energy security of vital American allies, such as Europe, Israel, and Turkey, and its significant help in supplying energy to US-friendly states Georgia, Moldova, and Ukraine, the next administration needs to reverse shortsighted Biden State Department policy. The decision not to waive Section 907 of the Freedom Support Act, banning US aid to the Azerbaijani government, damages American interests in the South Caucasus. It is in the interest of the US and Azerbaijan to expand their military and technical partnership to secure critical infrastructure in the region.

Rufat Ahmadzada is a graduate of City University London. His research area covers the South Caucasus and Iran. The views expressed in this article are the author’s own.

Iran’s Threat to Azerbaijan’s Critical Energy Infrastructure was originally published on Global Security Review.