In 1674, Louis XIV called upon Sweden to invade the Electorate of Brandenburg. In May 1675, a Swedish army advanced into the Mark but was defeated on June 18 at Fehrbellin and retreated to Swedish Demmin. The Fehrbellin affair was a mere skirmish, with actual casualties numbering fewer than 600 men, but it made Sweden appear vulnerable and enabled neighbouring countries to attack in the Scanian War.