In August 1995, Croatian armed forces began an offensive against the Serb-controlled Krajina region, advancing at great speed to capture Krajina's main town (Knin) barely 36 hours into its offensive. In four days, almost complete victory (without air support) was achieved with negligible losses. The offensive shattered the myths of: the formidable fighting qualities and skills of the Serb forces; the low views of military competence of Croatian and Muslim forces; international military intervention at great cost (difficulty and loss of lives).