In the spirit of Victor Davis Hansen, and with inter-generational friction, here's some ancient Greek:
When a man stands firm and remains unmoved in the front rank
and forgets all thoughts of disgraceful flight,
steeling his spirit and heart to endure,
and with words encourages the man standing next to him.
This is the man good in war.
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Tyrtaeus (Spartan poet, 7th Century B.C.)