Challenges to national defence in contemporary geopolitical situation

Based on the chosen research objective and problems the questionnaire survey method was selected. There was collected primary data which was processed by software using a computer-based statistical analysis program.

Next analysis, which solve in part about goals and objectives was the experts’ evaluation method based on experts’ surveyed sample analysis. The Kendall’s coefficient of concordance (W) was selected for experts’ data analysis. The statistical software package SPSS version 26 was used for the collected experts’ data analysis and for the hierarchical clustering analysis as well [11].