Invasion of Als (1658)
| Invasion of Als | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Part of the Dano-Swedish War (1658–1660) | |||||||||
Map of Sønderborg and its surroundings by Erik Dahlbergh | |||||||||
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| Belligerents | |||||||||
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Brandenburg Denmark–Norway Polish–Lithuanian Commonwealth | Swedish Empire | ||||||||
| Commanders and leaders | |||||||||
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Frederick William Peter Bredal † |
Rutger von Ascheberg Claes Uggla | ||||||||
| Units involved | |||||||||
| One Danish squadron |
Ascheberg's regiment Sønderborg garrison Der Strauss | ||||||||
| Strength | |||||||||
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Initially 700–800 cavalry Later 4,000 men 6 ships |
1,600 men 4–13 ships | ||||||||
| Casualties and losses | |||||||||
| Unknown | 2 wounded | ||||||||
The invasion of Als occurred from 4 to 8 Decembr (O.S.) / 14 to 18 December (N.S.) 1658 during the Dano-Swedish War of 1658–1660 when a Brandenburgian army under the command of Frederick William landed on the island. Initially trying to repel the army, Rutger von Ascheberg was forced to withdraw into Sønderborg Castle which was soon besieged. On 6 December, Major Claes Uggla arrived off the island, managing to evacuate the castle's garrison on 8 December while only sustaining 2 wounded.