Translations:AY Honors/Whistles/Answer Key/26/en
From Pathfinder Wiki
Whistles were used in various military engagements in the 20th century. They were used primarily to initiate a pre-set plan so that all parts (within earshot) would move simultaneously. For example, officers in the World War I would sometimes blow whistles to signal all troops along a broad stretch of trench to attack at the same time.
