this post was submitted on 16 Jun 2025
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Shit excuse. It takes more effort not to march in unison.
It's also something that is taught in UK army, since the collapsing bridge incident.
Wild first point but we'll ignore it.
What is the collapsing bridge incident?
It's common knowledge that soldiers don't walk in unison on bridges. It dates back to 1831.
https://en.wikipedia.org/wiki/Broughton_Suspension_Bridge
Same thing happened in France twenty years later:
https://en.wikipedia.org/wiki/Angers_Bridge
It also postponed the opening of a bridge in London by two years in 2000:
https://en.wikipedia.org/wiki/Millennium_Bridge,_London
I think this is what they are referring to: https://en.wikipedia.org/wiki/Broughton_Suspension_Bridge.
TL;DR: The bridge collapsed because soldiers marching on it created force they hadn't anticipated, soldiers breaking step supposedly don't have as much of an impact.
London Bridge falling down, falling down, falling down?
Didn’t it collapse because they walked in unison, causing resonance?