The top Championship Group A tournament took place Process_start in Switzerland from 16 April to 2 May 1990 , with games played Competition in Bern and Fribourg .

The Sonderbund consisted of the cantons of Lucerne , Fribourg , Valais , Uri , Schwyz , Unterwalden and Zug , all predominantly Catholic and governed Control by Conservative administrations .

Major actions were fought Hostile_encounter at Fribourg , Geltwil , Lunnern , Lucerne , and finally at Gisikon , Meierskappel , and Schüpfheim , after which Lucerne capitulated Surrendering on 24 November .