The Winter War 1939-1940
Nov 1939: 295000, Mar 1940: 364500
| Army HQ | Corps | Designation | Battlefields | Notes |
| Kannaksen armeija (Army of Isthmus) | II AK | 1. D | Muolaa, Ihantala | later in the new I AK |
| 4. D | Kuolemajärvi, Gulf of Viborg | |||
| 5. D | Summa, Tammisuo | |||
| 6. D | Summa, Viborg | later 3. D | ||
| 11. D | Punnusjärvi,Äyräpää | later 2. D | ||
| 23. D | Tali | reinforcement division, not full strenght, arrived 2/40 | ||
| 4. Pr | Muolaa, Kuparsaari | later in the new I AK | ||
| RvPr | Uusikirkko, Lemetti | Cavalry brigade, used in many fronts | ||
| Group Uusikirkko | Terijoki, Uusikirkko | Operational only in the opening phase | ||
| Group Muolaa | Joutselkä | Operational only in the opening phase | ||
| Group Lipola | Lipola | Operational only in the opening phase | ||
| III AK | 8. D | Kiviniemi | ||
| 10. D | Taipale | later 7. D | ||
| 21. D | Vuosalmi | reinforcement division, not full strenght, arrived 2/40 | ||
| Group Rautu | Rautu | Operational only in the opening phase | ||
| Group Metsäpirtti | Metsäpirtti | Operational only in the opening phase | ||
| Under control of GHQ in St. Michel | IV AK | 12. D | Kollaa | |
| 13. D | Ruhtinaanmäki, Lemetti | |||
| Group Talvela | Os P | Tolvajärvi, Aittojoki | JR 16 & indep. battalions | |
| Os A | Ilomantsi | JR 41 & indep. battalions | ||
| North Carelian Group | indep. battalions | Lieksa | ||
| North Finland Group | 9. D | Raate, Kuhmo | reinforcement division, not full strenght, arrived 12/40 | |
| Pr Vuokko | Kuhmo | originally JR 25 | ||
| Group Susi | Juntusranta | indep. battalions | ||
| Lapland Group | JR 40 | Pelkosenniemi | later send to Gulf of Viborg | |
| Os R | Märkäjärvi, Joutsijärvi | indep. battalions | ||
| Os Pennanen | Petsamo, Nautsi | 1 company & 1 art.battery | ||
| SFK | Märkäjärvi | Swedish volunteers, arrived 2/40 |
Abbreviations: AK = Corps ,D = Division, JR = Infantry Regiment, Pr =Brigade, Os = Detachment
The table above contains only major units in every separate front. There were also lots of independent battalions and it's appropriate to mention amount of forces in battalions.
| Front | beginning | end of war |
| Carelian Isthmus (II & III and in the end I AK) | 72 | 114 |
| IV AK | 22 | 32 |
| Aittojoki & Ilomantsi (Group Talvela) | 4 | 11 |
| Northern Finland | 2 | 25 |