# Report Warns of Imminent Large-Scale Russian Strike on Ukraine

*Wednesday, May 13, 2026 at 2:03 AM UTC — Hamer Intelligence Services Desk*

**Published**: 2026-05-13T02:03:16.346Z (2h ago)
**Category**: conflict | **Region**: Eastern Europe
**Importance**: 8/10
**Sources**: OSINT
**Permalink**: https://hamerintel.com/data/articles/3691.md
**Source**: https://hamerintel.com/summaries

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**Deck**: Indicators observed over the past five to six days suggest Russia is finalizing preparations for a major combined missile and drone attack against Ukraine, with reports around 00:10 UTC on 13 May 2026 pointing to a high threat level for the coming nights. The strike is not expected on the night of 13 May but could follow shortly after.

## Key Takeaways
- As of around 00:10 UTC on 13 May 2026, multiple indicators point to an upcoming large-scale Russian missile and drone attack on Ukraine.
- Preparations have reportedly been underway for 5–6 days, with the highest threat assessed for the night after 13 May or the following one.
- The anticipated strike package likely targets energy, military, and critical infrastructure across multiple regions.
- Ukrainian authorities are expected to heighten air defense readiness and civil protection measures in anticipation.

Reporting at approximately 00:09 UTC on 13 May 2026 indicates that Russia is in the final stages of preparing a substantial combined missile and drone strike on Ukraine. The assessment, based on observed preparatory activity over the preceding five to six days, suggests the attack will not occur on the night of 13 May itself, but that the highest probability window is the following night or the one after.

The anticipated operation is described as a large-scale, coordinated use of both cruise and ballistic missiles alongside various types of attack drones, including loitering munitions. Such combined strikes have become a key component of Russia’s campaign to degrade Ukraine’s power grid, air defense architecture, arms production, and military logistics.

The preparation indicators likely include increased activity at known Russian airbases and naval platforms associated with long-range strike assets; movements of missile-carrying aircraft and ships; and shifts in the posture of ground-based launchers. Intelligence on drone stockpiling, fueling, and staging at forward locations is also typically monitored before such operations.

Ukraine has faced repeated waves of large-scale aerial attacks since the start of the full-scale invasion, with patterns often linked to specific operational objectives or political signaling—such as punishing Ukrainian advances, responding to Western arms deliveries, or applying pressure ahead of major diplomatic events. The reported build-up suggests Moscow may be seeking renewed leverage at a time when front-line fighting and international support dynamics are in flux.

Key actors in this emerging scenario include Russia’s Aerospace Forces and associated missile brigades, which execute long-range strikes; Ukrainian Air Force and air defense units, responsible for intercepting inbound threats; and civil defense organizations tasked with alerting and sheltering the population. Western partners supporting Ukrainian air defenses, including those providing interceptors and radar systems, are indirectly implicated as their equipment will be tested by any large salvo.

The scale and targeting of the impending attack will influence both the immediate humanitarian impact and the broader strategic balance. A focus on energy infrastructure could bring renewed blackouts and strain on Ukraine’s grid, particularly if the strike coincides with peak demand or critical maintenance cycles. Attacks on airbases, ammunition depots, or command-and-control nodes would aim to degrade Ukraine’s military resilience and complicate any planned counteroffensives.

## Outlook & Way Forward

In the immediate term, Ukrainian authorities are likely to elevate air raid readiness, ensure the highest possible availability of air defense systems and missiles, and reinforce public messaging on shelter use and blackout measures. Civil-military coordination will be essential to manage potential simultaneous impacts across multiple regions, from major cities to frontline-adjacent areas.

For Ukraine’s partners, the expected strike underscores the urgency of replenishing interceptor stocks, closing remaining gaps in medium- and long-range air defenses, and accelerating the integration of diverse Western systems into a coherent national air defense network. Analysts should monitor requests from Kyiv for additional systems and munitions in the wake of the attack, as well as any shifts in Western political debates over the scope and duration of military aid.

Strategically, the outcome of the anticipated strike will inform both sides’ calculations. If Ukrainian defenses achieve high interception rates with limited damage to critical infrastructure, Russia may be forced to reconsider the cost-effectiveness of large salvo operations or adapt its targeting doctrine. Conversely, significant damage could embolden further waves, especially if Moscow perceives limited diplomatic backlash. Observers should track not only physical damage assessments but also changes in Ukrainian grid stability, military tempo, and public morale in the days following the expected attack window.