The data were assessed using the Shapiro–Wilk test, and found to be non-normally distributed. Hence, data are primarily reported as medians and interquartile ranges (IQRs) throughout. We used Mann–Whitney U tests for continuous and ordinal variables, and Fisher’s exact test and Chi-Squared for nominal variables. Pre- and post-deployment anxiety levels were paired for responses and compared using Wilcoxon’s signed rank test.