Scientist in Finland have been researching some WW2 archives relating to the “Winter War” in 1939-40 ( a great feat of arms by the Finnish army resisting overwhelming soviet forces and well worth reading about).
The archives have details on almost 800 soldiers in three Finnish regiments including photographs, number of children, and the rank attained.
Wider-faced men tended to have more children but usually attained a lower military rank.
In men face shape is influenced by testosterone levels making it a proxy for evolutionary success hence the fact that generally speaking men with broader and shorter faces are more aggressive but less trustworthy.
The researchers point out that dominance in the military may be better predicted by leadership qualities otter than aggressiveness. “The military relies on a strict hierarchy, which requires trust and fear of punishment to be maintained”
See also “Take me to your leader”