"Those who cannot remember the past are condemned to repeat it."
George Santayana
Learn history. Learn the reasons why wars were started, how they were fought, and how they were ended.
Is it really propaganda to remind people that there is something greater than themselves? Things like integrity, honor, loyalty, courage, and commitment are necessary both on and off the battlefield. These virtues are purified and strengthened in the crucible of battle.
Some pay the ultimate price. Some manage to survive and return to tell the tales, but who is listening? Only those that don't want to visit unspeakable places and learn, firsthand, the horrors of war. Those that don't want to listen either can not or will not appreciate the sacrifices made.
A population that doesn't understand are condemned to repeat an unwanted history.
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“Always remember the 6 P’s”
(Prior Preparation Prevents [censored] Poor Performance)