An Estonian soldier stares directly at the camera.

Estonia hosted one of the largest military exercises in its history. Known as exercise Hedgehog 25 — or Siil 2025 in Estonian — the operation saw 16,000 troops take part in a sweeping, multinational defence drill that spans the entire country. It’s a test of how Estonia and other NATO Allies would respond together in the face of a crisis.

An Estonian soldier walks through a dugout trench during exercise training.

Estonia hosted one of the largest military exercises in its history. Known as exercise Hedgehog 25 — or Siil 2025 in Estonian — the operation saw 16,000 troops take part in a sweeping, multinational defence drill that spans the entire country. It’s a test of how Estonia and other NATO Allies would respond together in the face of a crisis.

A close-up of an Estonian soldier staring straight ahead.

Estonia hosted one of the largest military exercises in its history. Known as exercise Hedgehog 25 — or Siil 2025 in Estonian — the operation saw 16,000 troops take part in a sweeping, multinational defence drill that spans the entire country. It’s a test of how Estonia and other NATO Allies would respond together in the face of a crisis.

10 nations make up the international military exercise that is #ExerciseHedgehog t.co/kTvIMSvPfM Source: Defence Operations North Atlantic Treaty Organization Backup by @natoarmynews A @rtptme project - Other backups: swiy.so/tme via t.me/natoarmynews/32879 #nato #otan #natoarmy #otanarmy #army #armynews #military #europa #europe #otanarmynews #natoarmynews #natonews #otannews

A close-up of an Estonian soldier as he looks through the grass during exercise training.

Estonia hosted one of the largest military exercises in its history. Known as exercise Hedgehog 25 — or Siil 2025 in Estonian — the operation saw 16,000 troops take part in a sweeping, multinational defence drill that spans the entire country. It’s a test of how Estonia and other NATO Allies would respond together in the face of a crisis.

Over 15,300 participants make up the international military exercise that is #ExerciseHedgehog t.co/fGs7n4U9Zf Source: Defence Operations North Atlantic Treaty Organization Backup by @natoarmynews A @rtptme project - Other backups: swiy.so/tme via t.me/natoarmynews/32674 #nato #otan #natoarmy #otanarmy #army #armynews #military #europa #europe #otanarmynews #natoarmynews #natonews #otannews

Have you heard about #ExerciseHedgehog? It tests combat readiness to repel military threats. t.co/xRBSmq0ZhC Source: Defence Operations North Atlantic Treaty Organization Backup by @natoarmynews A @rtptme project - Other backups: swiy.so/tme via t.me/natoarmynews/32462 #nato #otan #natoarmy #otanarmy #army #armynews #military #europa #europe #otanarmynews #natoarmynews #natonews #otannews

👤 15,300 participants 🌍 10 countries #ExerciseHedgehog is a large scale Estonian Defence Force led international military exercise, follow us this week to learn more! t.co/UKFdxTg48l Source: Defence Operations North Atlantic Treaty Organization Backup by @natoarmynews A @rtptme project - Other backups: swiy.so/tme via t.me/natoarmynews/31889 #nato #otan #natoarmy #otanarmy #army #armynews #military #europa #europe #otanarmynews #natoarmynews #natonews #otannews

Have you heard about #ExerciseHedgehog? It's a large scale Estonian Defence Force led international military exercise. t.co/36mWLzbSYF Source: Defence Operations North Atlantic Treaty Organization Backup by @natoarmynews A @rtptme project - Other backups: swiy.so/tme via t.me/natoarmynews/31618 #nato #otan #natoarmy #otanarmy #army #armynews #military #europa #europe #otanarmynews #natoarmynews #natonews #otannews

#NavyPartnerships Members of Task Force 61 Naval Amphibious Forces Europe/2d Marine Division (TF-61/2) joined their Estonian counterparts to kick off #ExerciseHedgehog, in Tallinn, Estonia, May 16. Read more below ⬇️ t.co/0D26azRBo0 Source: U.S. Navy North Atlantic Treaty Organization Backup by @natoarmynews A @rtptme project - Other backups: swiy.so/tme via t.me/natoarmynews/19275 #nato #otan #natoarmy #otanarmy #army #armynews #military #europa #europe #otanarmynews #natoarmynews #natonews #otannews