NATO symbols (APP-6 / MIL-STD-2525) are the graphic language of maps, briefings and C2 products. Knowing the fundamentals lets you read a graphic OPORD, identify unit dispositions on a map and understand a common operational picture (COP). Different from the Russian system (Cyrillic, different geometry) — useful to interpret captured maps.
Affiliation (shape and colour)
The symbol frame identifies who it is. Four standard categories.
| Shape / colour | Affiliation |
|---|---|
| Blue / rectangle | Friend (amico) |
| Red / diamond | Hostile (nemico) |
| Green / square | Neutral |
| Yellow / quatrefoil | Unknown |
Unit size (amplifier)
Above the frame, symbols indicating the hierarchical size of the represented unit.
| Amplifier | Level | Strength |
|---|---|---|
| • (dot) | Team / Crew | 3–5 |
| •• | Section / Squad | 8–12 |
| ••• | Plotone | 30–40 |
| I | Compagnia | 100–150 |
| II | Battaglione | 500–800 |
| III | Reggimento / Brigata | 3 000–5 000 |
| X | Brigata (variante) | — |
| XX | Divisione | 10 000–20 000 |
| XXX | Corpo d'Armata | — |
Function (inner icon)
Inside the frame, an icon indicates the unit's function: infantry, cavalry, artillery, engineer, etc.
| Icon | Function |
|---|---|
| Croce diagonale × | Fanteria |
| Linea orizzontale | Cavalleria / Recon |
| Cerchio | Logistico / Trasporti |
| Punto + linea verticale | Artiglieria |
| Cerchio + diagonale | Genio / Engineer |
| Linee verticali parallele | Signal / Comms |
| Croce di Lorena | Sanità |
| Punto in cerchio | MP / Polizia militare |
Reading example
Blue rectangular frame + two dashes above + diagonal cross inside = friendly infantry squad. Red diamond frame + 'I' above + circle inside = enemy logistic company.
Read the frame first (who), then the amplifier (how big), then the icon (what does). Three fast steps: friend/enemy, size, function.
Russian system (notes)
- Different geometry: dashed lines, angular shapes
- Unit numbering in Cyrillic (МСБ = mechanised infantry battalion)
- Less standardised colour coding
- Tactical diagrams (схема) follow their own conventions
Common mistakes
- Confusing size amplifier with command rank
- Drawing freehand without using standard shapes
- Skipping colour affiliation — on monochrome, use shape explicitly
- Mixing engineer (circle+diagonal) with logistic (circle)
- Using APP-6 to report Russian units — fine, but marked as hostile for clarity
Lessons learned Ukraine
C2 products on the Ukrainian front mix NATO APP-6 and Ukrainian own nomenclature in Cyrillic. Volunteers operating in Ukrainian units must read both. Practice: identify the frame first (always consistent), then negotiate icon reading with the host command. Recognising Russian symbols on captured maps is an operational bonus — many operations have benefited from correctly read captured documents.