diff --git a/resources/theaters/caucasus/landmap.p b/resources/theaters/caucasus/landmap.p
index 5b053f1d..1d77606e 100644
Binary files a/resources/theaters/caucasus/landmap.p and b/resources/theaters/caucasus/landmap.p differ
diff --git a/resources/tools/cau_terrain.miz b/resources/tools/cau_terrain.miz
index a0a53f08..f3a22e02 100644
Binary files a/resources/tools/cau_terrain.miz and b/resources/tools/cau_terrain.miz differ
diff --git a/resources/tools/generate_landmap.py b/resources/tools/generate_landmap.py
index 6fb52796..1fba12e7 100644
--- a/resources/tools/generate_landmap.py
+++ b/resources/tools/generate_landmap.py
@@ -52,17 +52,13 @@ def main() -> None:
         for plane_group in m.country("USA").plane_group:
             zone = [(x.position.x, x.position.y) for x in plane_group.points]
 
-            if terrain == "cau" and inclusion_zones:
-                # legacy
-                exclusion_zones.append(Polygon(zone))
+            poly = Polygon(zone)
+            if not poly.is_valid:
+                raise RuntimeError(f"{plane_group} is invalid")
+            if plane_group.units[0].type == "F-15C":
+                exclusion_zones.append(poly)
             else:
-                poly = Polygon(zone)
-                if not poly.is_valid:
-                    raise RuntimeError(f"{plane_group} is invalid")
-                if plane_group.units[0].type == "F-15C":
-                    exclusion_zones.append(poly)
-                else:
-                    inclusion_zones.append(poly)
+                inclusion_zones.append(poly)
 
         for ship_group in m.country("USA").ship_group:
             zone = [(x.position.x, x.position.y) for x in ship_group.points]