XII Squadriglia MAS
| XII Squadriglia MAS | |
|---|---|
The Italian motor torpedo boats MAS 527 and MAS 528 on Lake Ladoga in the autumn of 1942, during the siege of Leningrad | |
| Active | 1942–1943 |
| Country | Italy |
| Branch | Regia Marina |
| Type | Division (Italian: squadriglia) |
| Role | Anti-submarine warfare Commerce raiding Direct fire Fire support Maritime patrol Raiding Underwater warfare |
| Size | 4 motor torpedo boats |
| Part of | Naval Detachment K |
| Home port | Sortanlahti |
| Equipment | MAS boats |
| Engagements | Siege of Leningrad |
| Commanders | |
| Capitano di Corvetta | Giuseppe Bianchini |
The XII Squadriglia MAS (lit. '12th Assault Craft Division'; Italian: MAS, an initialism for Mezzi d'Assalto) was a formation of the Royal Italian Navy (Regia Marina) which served on Lake Ladoga as part of the Axis siege of Leningrad during World War II.