US Air Force RC-135 Combat Sent conducts 15th radar signature mapping mission over Kaliningrad, continuing Nordic/Baltic deployment

Intelligence & EspionageSignals/Technical Intelligence (SIGINT/TECHINT)Electronic surveillance

AggressorDefense

Summary

On September 30, 2024, the US Air Force RC-135 Combat Sent conducted its 15th radar reconnaissance mission over Kaliningrad during a sustained Nordic/Baltic deployment, mapping Russian radar systems to support allied intelligence efforts.

On September 30, 2024, the US Air Force RC-135 Combat Sent electronic reconnaissance aircraft conducted its 15th mission of the year, focusing on mapping radar signatures of the Kaliningrad region. This mission is part of an ongoing 7-week deployment of US intelligence assets in the Nordic and Baltic airspace. The Combat Sent platform's purpose is to identify and characterize enemy radar systems to support strike planning and situational awareness. This year's deployment shows increased prioritization of the Nordic/Baltic region compared to previous years and other theaters such as the eastern Mediterranean. The missions typically involve adjustments in altitude to accurately map radar emissions, as evident in recent missions around Kaliningrad and St Petersburg. The campaign is annual, with more missions conducted earlier than in past years (e.g., 13 missions reported last month, increasing to 15 by end of September). This expanded radar reconnaissance presence reflects strategic intelligence collection aimed at Russian air defense systems in key Baltic and Nordic regions.

Classification

Confidence: High

Clear, detailed reporting confirms the US Air Force RC-135 Combat Sent conducted multiple radar-signature mapping missions over Kaliningrad and surrounding Baltic/Nordic airspace as part of a sustained intelligence operation against Russian radar systems, constituting aggressor reconnaissance activity. The US is conducting defensive intelligence collection to monitor Russian air defenses, supporting allied situational awareness.

Source URL

https://x.com/i/web/status/1841729319216783539

Open source

Provenance

Publisher: csv-import
Submitted: Feb 1, 2026, 00:14 UTC
Last updated: Nov 8, 2026, 21:32 UTC
Event time: Sep 30, 2024, 00:00 UTC

Published as a Defense Preparations signal with a public source and reviewer-approved assessment bands. See the methodology for how records are assessed.

Raw record

{
  "id": "e5f17648-6bfb-450e-b8b0-e33df0e90973",
  "url": "https://x.com/i/web/status/1841729319216783539",
  "source": "csv-import",
  "status": "approved",
  "category": "Intelligence & Espionage",
  "subcategory": "Signals/Technical Intelligence (SIGINT/TECHINT)",
  "incident_type": "Electronic surveillance",
  "country": "Russian Federation",
  "source_reliability": "A",
  "info_credibility": "2",
  "tags": [
    "RC-135 Combat Sent",
    "Electronic Surveillance",
    "Radar Mapping",
    "Kaliningrad",
    "Baltic Region",
    "Nordic Deployment",
    "us air force",
    "SIGINT",
    "Intelligence Collection"
  ],
  "nodes": [
    "Node 1: Borders"
  ],
  "countries": [],
  "where_text": "Airspace",
  "headline": "US Air Force RC-135 Combat Sent conducts 15th radar signature mapping mission over Kaliningrad, continuing Nordic/Baltic deployment",
  "description": "On September 30, 2024, the US Air Force RC-135 Combat Sent electronic reconnaissance aircraft conducted its 15th mission of the year, focusing on mapping radar signatures of the Kaliningrad region. This mission is part of an ongoing 7-week deployment of US intelligence assets in the Nordic and Baltic airspace. The Combat Sent platform's purpose is to identify and characterize enemy radar systems to support strike planning and situational awareness. This year's deployment shows increased prioritization of the Nordic/Baltic region compared to previous years and other theaters such as the eastern Mediterranean. The missions typically involve adjustments in altitude to accurately map radar emissions, as evident in recent missions around Kaliningrad and St Petersburg. The campaign is annual, with more missions conducted earlier than in past years (e.g., 13 missions reported last month, increasing to 15 by end of September). This expanded radar reconnaissance presence reflects strategic intelligence collection aimed at Russian air defense systems in key Baltic and Nordic regions.",
  "summary_short": "On September 30, 2024, the US Air Force RC-135 Combat Sent conducted its 15th radar reconnaissance mission over Kaliningrad during a sustained Nordic/Baltic deployment, mapping Russian radar systems to support allied intelligence efforts.",
  "summary_extended": null,
  "actor_primary": "US Air Force RC-135 Combat Sent",
  "target_primary": null,
  "location_text": "Kaliningrad region, Russia",
  "location_region": null,
  "location_coordinates_lat": null,
  "location_coordinates_lon": null,
  "location_precision": "Unknown",
  "is_aggressor_signal": true,
  "signal_type": "DEFENSE_PREP_SIGNAL",
  "is_hybrid_war_signal": true,
  "classification_complete": true,
  "hybrid_signal_complete": true,
  "classification_confidence": "High",
  "classification_rationale": "Clear, detailed reporting confirms the US Air Force RC-135 Combat Sent conducted multiple radar-signature mapping missions over Kaliningrad and surrounding Baltic/Nordic airspace as part of a sustained intelligence operation against Russian radar systems, constituting aggressor reconnaissance activity. The US is conducting defensive intelligence collection to monitor Russian air defenses, supporting allied situational awareness.",
  "event_time_utc": "2024-09-30T00:00:00.000Z",
  "end_time_utc": null,
  "event_time_confidence": "pm24h",
  "created_at": "2026-02-01T00:14:49.521Z",
  "updated_at": "2026-11-08T21:32:38.836Z",
  "reliability_band": "strong",
  "location_precision_band": "unknown",
  "time_precision_band": "within_24h",
  "severity_band": "moderate",
  "attribution_confidence_band": "high",
  "attribution_basis": "single_source"
}

Public assessmentReliability: StrongSeverity: ModerateAttribution: HighSingle sourceTime: Same dayLocation: Unknown

Source reliability

Info credibility

Event time

Sep 30, 2024, 00:00 UTC

Event time confidence

pm24h

Location

Kaliningrad region, Russia

Primary actor

US Air Force RC-135 Combat Sent

Country

Russian Federation

Tags

RC-135 Combat Sent, Electronic Surveillance, Radar Mapping, Kaliningrad, Baltic Region, Nordic Deployment, us air force, SIGINT, Intelligence Collection

Nodes

Node 1: Borders

Loading signal...

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