The Soča (pronounced[ˈsoːtʃa] in Slovene) or Isonzo (pronounced[iˈzontso] in Italian) (other names Friulian:Lusinç, archaic German:Sontig, Latin:Aesontius or Isontius) is a 138-kilometre (86mi) long river that flows through western Slovenia (96 kilometres or 60 miles) and northeastern Italy (43 kilometres or 27 miles).