Finnish Defence Forces are building permanent battle positions along the Kymenlaakso coast in May 2026 as part of a month-long exercise including Finnish and international troops.

Military & Paramilitary OperationsConventional Military PressureTroop movements near borders

Defense

Summary

In May 2026, the Finnish Defence Forces are constructing permanent battle positions along the Kymenlaakso coast, including at Virolahti's Klamila harbor and Kotka's Kirkonmaa archipelago, under the leadership of Commander Veli Pihlaja of the Coastal Brigade. These constructions involve concrete modules and large sandbags, some dug into the ground to serve as covered trenches. The work coincides with the Logistiikkalaitos-led Tukimuuri 26 exercise, beginning May 17 and lasting through May 29, followed by the international Narrow Waters 26 exercise involving Finnish and international troops. Access in the construction zones is controlled, and the Defence Forces request that exact locations and images of the positions not be shared on social media. Live fire exercises with blank cartridges are planned from May 20 to 22, causing noise in Klamila. The Defence Forces clarify these exercises are standard training and not connected to potential drone incursions across Finland's border.

Classification

Confidence: High

The article details Finnish Defence Forces' construction of permanent defensive battle positions as part of planned military exercises in May 2026, indicating defense preparations rather than aggressor hostile activity.

Source URL

https://yle.fi/a/74-20223274

Open source

Provenance

Publisher: extension
Submitted: Apr 30, 2026, 16:51 UTC
Last updated: Nov 4, 2026, 08:36 UTC
Event time: May 1, 2026, 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": "aeb1a0a0-3431-4816-a8bd-28c123773be5",
  "url": "https://yle.fi/a/74-20223274",
  "source": "extension",
  "status": "approved",
  "category": "Military & Paramilitary Operations",
  "subcategory": "Conventional Military Pressure",
  "incident_type": "Troop movements near borders",
  "country": "Finland",
  "source_reliability": "C",
  "info_credibility": "3",
  "tags": [
    "Finland",
    "military exercise",
    "battle positions",
    "permanent fortifications",
    "defense preparations",
    "Coastal Brigade",
    "Logistiikkalaitos",
    "Tukimuuri 26",
    "Narrow Waters 26",
    "Kymenlaakso"
  ],
  "nodes": [
    "Node 1: Borders"
  ],
  "countries": [
    "Finland"
  ],
  "where_text": "Land",
  "headline": null,
  "description": "The Finnish Defence Forces are constructing permanent battle positions in the Kymenlaakso coastal region during May 2026, including locations in Virolahti's Klamila harbor and Kirkonmaa archipelago in Kotka. The positions, made from concrete modules and sandbags, are partly underground. They are part of the Tukimuuri 26 exercise, led by the Defence Forces Logistics Department, starting May 17 and ending May 29, with international troop participation observed during the Narrow Waters 26 exercise. Construction zones have controlled access with movement restrictions. Noise from live-fire with blank cartridges is expected May 20-22. The Defence Forces request that the sites not be photographed or shared publicly to maintain operational secrecy. The exercises are routine and not linked to counter-drone efforts.",
  "summary_short": "Finnish Defence Forces are building permanent battle positions along the Kymenlaakso coast in May 2026 as part of a month-long exercise including Finnish and international troops.",
  "summary_extended": "In May 2026, the Finnish Defence Forces are constructing permanent battle positions along the Kymenlaakso coast, including at Virolahti's Klamila harbor and Kotka's Kirkonmaa archipelago, under the leadership of Commander Veli Pihlaja of the Coastal Brigade. These constructions involve concrete modules and large sandbags, some dug into the ground to serve as covered trenches. The work coincides with the Logistiikkalaitos-led Tukimuuri 26 exercise, beginning May 17 and lasting through May 29, followed by the international Narrow Waters 26 exercise involving Finnish and international troops. Access in the construction zones is controlled, and the Defence Forces request that exact locations and images of the positions not be shared on social media. Live fire exercises with blank cartridges are planned from May 20 to 22, causing noise in Klamila. The Defence Forces clarify these exercises are standard training and not connected to potential drone incursions across Finland's border.",
  "actor_primary": "Commander Veli Pihlaja",
  "target_primary": null,
  "location_text": "Kymenlaakso region, Virolahti Klamila harbor, Kirkonmaa archipelago in Kotka, Kotka, Hamina",
  "location_region": "Kymenlaakso",
  "location_coordinates_lat": null,
  "location_coordinates_lon": null,
  "location_precision": "Regional",
  "is_aggressor_signal": false,
  "signal_type": "DEFENSE_PREP_SIGNAL",
  "is_hybrid_war_signal": false,
  "classification_complete": true,
  "hybrid_signal_complete": true,
  "classification_confidence": "High",
  "classification_rationale": "The article details Finnish Defence Forces' construction of permanent defensive battle positions as part of planned military exercises in May 2026, indicating defense preparations rather than aggressor hostile activity.",
  "event_time_utc": "2026-05-01T00:00:00.000Z",
  "end_time_utc": "2026-05-29T00:00:00.000Z",
  "event_time_confidence": "exact",
  "created_at": "2026-04-30T16:51:00.129Z",
  "updated_at": "2026-11-04T08:36:03.522Z",
  "reliability_band": "strong",
  "location_precision_band": "regional",
  "time_precision_band": "exact",
  "severity_band": "minor",
  "attribution_confidence_band": "high",
  "attribution_basis": "single_source"
}

Public assessmentReliability: StrongSeverity: MinorAttribution: HighSingle sourceTime: ExactLocation: Regional

Source reliability

Info credibility

Event time

May 1, 2026, 00:00 UTC

End time

May 29, 2026, 00:00 UTC

Event time confidence

exact

Location

Kymenlaakso region, Virolahti Klamila harbor, Kirkonmaa archipelago in Kotka, Kotka, Hamina

Region

Kymenlaakso

Primary actor

Commander Veli Pihlaja

Country

Finland

Countries

Finland

Tags

Finland, military exercise, battle positions, permanent fortifications, defense preparations, Coastal Brigade, Logistiikkalaitos, Tukimuuri 26, Narrow Waters 26, Kymenlaakso

Nodes

Node 1: Borders

Loading signal...

{ "id": "aeb1a0a0-3431-4816-a8bd-28c123773be5", "url": "https://yle.fi/a/74-20223274", "source": "extension", "status": "approved", "category": "Military & Paramilitary Operations", "subcategory": "Conventional Military Pressure", "incident_type": "Troop movements near borders", "country": "Finland", "source_reliability": "C", "info_credibility": "3", "tags": [ "Finland", "military exercise", "battle positions", "permanent fortifications", "defense preparations", "Coastal Brigade", "Logistiikkalaitos", "Tukimuuri 26", "Narrow Waters 26", "Kymenlaakso" ], "nodes": [ "Node 1: Borders" ], "countries": [ "Finland" ], "where_text": "Land", "headline": null, "description": "The Finnish Defence Forces are constructing permanent battle positions in the Kymenlaakso coastal region during May 2026, including locations in Virolahti's Klamila harbor and Kirkonmaa archipelago in Kotka. The positions, made from concrete modules and sandbags, are partly underground. They are part of the Tukimuuri 26 exercise, led by the Defence Forces Logistics Department, starting May 17 and ending May 29, with international troop participation observed during the Narrow Waters 26 exercise. Construction zones have controlled access with movement restrictions. Noise from live-fire with blank cartridges is expected May 20-22. The Defence Forces request that the sites not be photographed or shared publicly to maintain operational secrecy. The exercises are routine and not linked to counter-drone efforts.", "summary_short": "Finnish Defence Forces are building permanent battle positions along the Kymenlaakso coast in May 2026 as part of a month-long exercise including Finnish and international troops.", "summary_extended": "In May 2026, the Finnish Defence Forces are constructing permanent battle positions along the Kymenlaakso coast, including at Virolahti's Klamila harbor and Kotka's Kirkonmaa archipelago, under the leadership of Commander Veli Pihlaja of the Coastal Brigade. These constructions involve concrete modules and large sandbags, some dug into the ground to serve as covered trenches. The work coincides with the Logistiikkalaitos-led Tukimuuri 26 exercise, beginning May 17 and lasting through May 29, followed by the international Narrow Waters 26 exercise involving Finnish and international troops. Access in the construction zones is controlled, and the Defence Forces request that exact locations and images of the positions not be shared on social media. Live fire exercises with blank cartridges are planned from May 20 to 22, causing noise in Klamila. The Defence Forces clarify these exercises are standard training and not connected to potential drone incursions across Finland's border.", "actor_primary": "Commander Veli Pihlaja", "target_primary": null, "location_text": "Kymenlaakso region, Virolahti Klamila harbor, Kirkonmaa archipelago in Kotka, Kotka, Hamina", "location_region": "Kymenlaakso", "location_coordinates_lat": null, "location_coordinates_lon": null, "location_precision": "Regional", "is_aggressor_signal": false, "signal_type": "DEFENSE_PREP_SIGNAL", "is_hybrid_war_signal": false, "classification_complete": true, "hybrid_signal_complete": true, "classification_confidence": "High", "classification_rationale": "The article details Finnish Defence Forces' construction of permanent defensive battle positions as part of planned military exercises in May 2026, indicating defense preparations rather than aggressor hostile activity.", "event_time_utc": "2026-05-01T00:00:00.000Z", "end_time_utc": "2026-05-29T00:00:00.000Z", "event_time_confidence": "exact", "created_at": "2026-04-30T16:51:00.129Z", "updated_at": "2026-11-04T08:36:03.522Z", "reliability_band": "strong", "location_precision_band": "regional", "time_precision_band": "exact", "severity_band": "minor", "attribution_confidence_band": "high", "attribution_basis": "single_source" }