Operation Tanne Ost

Operation Tanne Ost
Part of the Lapland War of World War II

Location of Åland, Suursaari, and Kronstadt.
Date15 September 1944
Location
Result Finnish victory
Belligerents
 Germany  Finland
Air support:
 Soviet Union
Commanders and leaders
Karl-Conrad Mecke Martti Miettinen [fi]
Strength
Nazi Germany 2,700 Finland 1,612
Soviet Union 10 Ilyushin Il-2
Soviet Union 3 Tupolev SB
Casualties and losses
153 KIA
1,231 POWs
3 landing crafts (F-822, F-866 & F-173)
3 patrol boats (B-1, B-31 & B-35)
1 minesweeper (R-29)
1 tugboat (Pernau) 2 Halftrucks, 1 light armoured car and a few trucks
Finland 36 KIA
67 WIA
8 MIA
2 patrol boats (VMV 10 & VMV 14)
Soviet Union 2 Il-2 and 1 SB

Operation Tanne Ost ("Fir East") was a German operation during World War II to capture the island Suursaari (Swedish: Hogland, Russian: Gogland) in the Gulf of Finland before it could fall into Soviet hands. Suursaari was especially important because it worked as a lock in the Finnish Gulf guarding the minefields keeping the Soviet Baltic Fleet in Kronstadt.