HUZZAH!!!
Wikipedia says: In the 18th and early 19th centuries, three "huzzahs" were given by British infantry before a charge, as a way of building morale and intimidating the enemy. The book Redcoat: The British Soldier in the Age of Horse and Musket by Richard Holmes indicates that this was given as two short "huzzahs" followed by a third sustained one as the charge was carried out.
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