diff --git a/src/games/civilization/CivilizationMapView.js b/src/games/civilization/CivilizationMapView.js
index 50d0fc1..bdd0505 100644
--- a/src/games/civilization/CivilizationMapView.js
+++ b/src/games/civilization/CivilizationMapView.js
@@ -668,6 +668,37 @@ export class CivilizationMapView {
       }).setOrigin(0.5);
       container.add([badge, num]);
     }
+    // Fortification icon: shown when fortified on open ground (not in a city
+    // or fortress, which give their own defensive bonuses). Drawn at the
+    // unit's feet rather than shoulder height so it reads as ground defence.
+    if (unit.fortified) {
+      const hereCity = cityAt(this.state, c, r);
+      const idx = tileIndex(this.state.world, c, r);
+      const hasFortress = !!(this.state.world.improvements[idx] & IMP.FORTRESS);
+      if (!hereCity && !hasFortress) {
+        const iconY = spriteMode ? 0 : 12;
+        const impSheet = scene.textures.exists('civilization-improvements');
+        if (impSheet) {
+          container.add(scene.add.image(0, iconY, 'civilization-improvements', 5).setScale(0.6));
+        } else {
+          // Procedural shield icon fallback.
+          const sg = scene.add.graphics();
+          sg.fillStyle(0x888888, 1);
+          sg.beginPath();
+          sg.moveTo(0, iconY - 7);
+          sg.lineTo(6, iconY - 5);
+          sg.lineTo(6, iconY + 1);
+          sg.quadraticCurveTo(6, iconY + 7, 0, iconY + 8);
+          sg.quadraticCurveTo(-6, iconY + 7, -6, iconY + 1);
+          sg.lineTo(-6, iconY - 5);
+          sg.closePath();
+          sg.fillPath();
+          sg.lineStyle(1, 0x000000, 0.6);
+          sg.strokePath();
+          container.add(sg);
+        }
+      }
+    }
     // Only the currently-selected unit is clickable — clicking any other
     // unit's tile still goes through the normal tile-click select/move flow
     // in CivilizationGame (see bindPointer/onTileClick). Every unit is still