In response the Indonesian army led by General Soedirman started a guerrilla war from surrounding areas .
In response the Indonesian army led by General Soedirman conducted large - scale raids into the cities of Jogyakarta and Surakarta , called Serangan Oemoem .
In response the Indonesian army led by General Soedirman started a guerrilla war from surrounding areas and conducted large - scale raids into the cities of Jogyakarta and Surakarta , called Serangan Oemoem .