Guevara was charged with purging the Batista army and consolidating victory by exacting "revolutionary justice" against those regarded as traitors, chivatos (informants) or war criminals.
Guevara ditugaskan "membersihkan" angkatan darat Batista dan memberlakukan "keadilan revolusioner" terhadap orang-orang yang dianggap pengkhianat, chivatos (informan), atau penjahat perang.