The aim of this research was to examine the differences between children of veterans with PTSD and children of non veterans without PTSD in emotional competence, attachment styles and some forms of deviant behavior that are a possible consequence of the transgenerational transmission of trauma. Research into the relationship of the above variables with PTSD aims to examine whether there are specific patterns of behavior that can cause transgenerational transmission of trauma in the families of veterans with PTSD. The sample consists of 108 respondents from the area of Sisak Moslavina County, born between 1995 and 2000 . and divided into two groups. One group consists of children whose parents participated in the Homeland War and have the status of veterans and a diagnosis of PTSD, while the other group consists of children of parents who did not participate in the Homeland War, without the status of veterans and PTSD. The Emotional Competence Questionnaire was used as a measure of emotional competence, while the Revised Adult Attachment Scale was used to measure attachment styles. Certain forms of deviant behavior and inadequate parental behavior during the respondents' growing up were examined with questionnaires created for the purpose of this research. The research was conducted using a Google form that included questions for self assessment. These questionnaires were distributed to the electronic addresses of the association of veterans and volunteers of the Homeland War to individuals who have children between the ages of 23 and 28. Furthermore, these parents enabled contact with their children who recived online questionnaires. The distribution of the questionnaire to the children of non combatants without PTSD was carried out by distributing the link to the email addresses of the citizens ' associations of the cities Sisak and Petrinja, with instructions to respect the age and status of the parents regarding participation in the Homeland War as a condition for participation in the research. The research results indicate a lower achievement on the emotional regulation and control subscale of the Emotional Competence Questionnaire in children of veterans with PTSD compared to children of non veterans without PTSD. The results on the subscales of expressing and naming as well as noticing and understanding emotions did not differ statistically significantly in the observed groups. Furthermore, children of veterans were statistically significantly less secure and more anxiously attached than children of non veterans who were more secure and dependent on attachment. The results within the measures of inadequate parental behavior, deviant behavior and abuse of addictive substances show a higher prevalence of these patterns of behavior in the families of veterans with PTSD compared to the families of non veterans without PTSD. The results on the mentioned variables indicate possible correlates of transgenerational transmission of trauma. In order to generalize the results, a third group of child veterans without PTSD should be included in future research, and the research design should be repeated on a larger sample. The obtained results can serve as an implication in the design and creation of preventive programs or the recognition of risky environmental influences that contribute to the transgenerational transfer of inadequate patterns of behavior in post war environments. Such research is necessary for the creation of measures aimed at identifying patterns that promote transgenerational transmission of trauma and affect the individual's mental health.