The Theatre War (Swedish: Teaterkriget), Cowberry War, Cranberry War or Lingonberry War (Norwegian: Tyttebærkrigen, Danish: Tyttebærkrigen), was a brief war between Denmark–Norway and Sweden, starting on 24 September 1788, formally lasting until 9 July 1789. Although the decision to launch the attack was taken in Denmark, the majority of the attacking soldiers were Norwegians from the Norwegian army.
The attack was directed towards the region known as Bohuslän in Sweden, and was supposed to act as a diversion to relieve Russia, who was an ally of Denmark–Norway and had recently been attacked by Sweden (Gustav III's Russian War). This forced Denmark–Norway to honour their alliance between the two states that had been signed in 1773.
[en]