[3] In 2000, he was one of the signatories of the Twelve Generals' Letter, which resulted in Krstičević's retiring by then–Croatian president Stjepan Mesić.

[4] He then worked as a manager, ceo, procurator and member of the supervisory board in computer software developing companies M SAN and King ICT.

Bosnian authorities were also investigating Krstičević for crimes during the operation that included the massacre of 32 Serb civilians.

[10] In 2018, he drew criticism for praising Operation Medak Pocket saying it was "something to be proud of" despite the fact that Serb civilians were unlawfully killed, in addition he faced heavy criticism for legitimizing the presence of convicted war criminal Mirko Norac at an anniversary 'commemorating' the attack.

[11] In May 2020, he resigned from his post as Defence Minister after the deaths of two Croatian military pilots in an aircraft accident.