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