Were intelligent soldiers more likely to die during World War II?

Analysing their data by rank offers some insight. Low-ranking soldiers accounted for three-fifths of all deaths, and their IQs measured by their childhood tests averaged 95.3. Officers and non-commissioned officers made up for about 7% and 20% of war deaths respectively. Officers scored 121.9, bringing up the average IQ for those who died. Non-commissioned officers scored an average of 106.7.