a swedish force of 800 men that had been left at the village of nappa near keltis came under attack by a 2,500 strong russian force commanded by general backman. the swedes retreated in an orderly fashion and were soon reinforced when general vilhelm mauritz pauli arrived with 1,200 men. meanwhile, the russian force halted and positioned itself at the keltis barracks, originally built as a swedish guardpost, where it also received some reinforcements.