Capitulation at Helsingfors

Capitulation at Helsingfors
Part of Russo-Swedish War (1741–1743)

Map of Gulf of Finland in 1742
Date12–24 August, 1742
Location
Helsingfors (Helsinki), Finland, Kingdom of Sweden
Result Russian victory
Territorial
changes
Whole of Finland is completely occupied by the Russians
Belligerents
 Sweden  Russia
Commanders and leaders
Charles Lewenhaupt
Jean Louis Bousquet 
Peter Lacy
James Keith
Strength
17,000 17,500 to 30,000
Casualties and losses
Entire army
90 cannons
Few

The Capitulation at Helsingfors was a military campaign in the summer of 1742, during the Russo-Swedish War of 1741–1743, as a result of which the Russians were able to surround and then force the main forces of the Swedish army to capitulate in Helsingfors (Helsinki).