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Russian Offensive Campaign Assessment, October 20, 2026

ISW · Institute for the Study of War ·

Executive Summary

Ukrainian forces face ongoing speed restrictions on Starlink/Starshield, hindering their ability to counter Russian drones and conduct intermediate-range strikes. Ukraine's Operation Vivaldi successfully disrupted Russia's Donetsk campaign, forcing a costlier frontal assault. Meanwhile, senior Kremlin officials reaffirmed support for Iran and labeled the US a long-term adversary.

Why It Matters

This report details critical operational challenges for Ukraine in the ongoing conflict, highlights successful Ukrainian counteroffensive strategies, and underscores Russia's hardening geopolitical stance against the US and its deepening ties with Iran.

Key Takeaways

  • Ukrainian forces are hampered by SpaceX's Starlink/Starshield speed restrictions, impacting their drone interception and strike capabilities against Russian forces.
    Source evidence · PDF page 2
    Ukrainian forces continue to face in-motion speed restrictions to SpaceX·s low-earth orbit satellite communication technology (Starlink and Starshield) that limit Ukraine·s ability to counter Russian piston engine-driven and jet-powered strike drones.
  • Ukraine's 'Operation Vivaldi' successfully thwarted Russia's northern pincer movement in Donetsk Oblast, forcing Russia into more difficult and costly frontal assaults.
    Source evidence · PDF page 2
    Ukrainian forces continue to publish further details about Ukraine·s Operation Vivaldi · a counteroffensive operation that fundamentally disrupted the Russian campaign for Donetsk Oblast by defeating the northern pincer that the Russian military intended to use to encircle the Fortress Belt from the north.
  • Russia continues to deepen its alliance with Iran and explicitly views the United States as a long-term adversary, despite recent US concessions.
    Source evidence · PDF page 3
    Senior Kremlin officials reaffirmed Russian support for Iran and explicitly defined the United States as Russia·s long-term adversary, despite the recent unilateral US concession to Moscow · offering Russia a diesel export waiver.

Strategic Relevance

The document provides a detailed operational update on the Russia-Ukraine war, highlighting the critical role of satellite communication technology, the effectiveness of Ukrainian counteroffensives, and Russia's strategic alignment with Iran against the US. This impacts understanding of battlefield dynamics, technological dependencies, and evolving international alliances.

Source Website View PDF

Key Entities

UkraineRussiaSpaceXStarlinkStarshieldIranUnited StatesVolodymyr ZelenskySerhiy BeskrestnovAndrii BiletskyiSergei LavrovDmitry Medvedev

Best For

Military analystsGeopolitical strategistsDefense technology researchersPolicy makers on Eastern Europe and Middle EastIntelligence community

Related Themes

Satellite CommunicationsDrone WarfareCounteroffensivesRussia-Ukraine WarUS-Russia RelationsRussia-Iran Alliance

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