The operation was criticised Judgment_communication for its poor planning and execution , insufficient preparation , reconnaissance Scrutiny and training Education_teaching , and inappropriate command Control and control Research methods applied by the Sisak Operational Group in charge of the offensive .

Operational duties included welcoming back King Haakon VII of Norway , looking after Allied ex-prisoners of war , arresting Arrest war criminals and supervising Scrutiny the clearing of minefields .

In order to do this , Tito formed Coming_to_be the so-called Main Operational Group , which eventually succeeded in forcing Request its way across the Neretva in mid-March 1943 , after a series of battles with various hostile formations .