World War I During World War I, officers of the British Army and United States Army used whistles to communicate with troops, command charges and warn when artillery pieces were going to fire. Most whistles used by the British were manufactured by J & Hudson Co.
World War I During World War I officers of the British Army and United States Army used whistles to communicate with troops, command charges and warn when artillery pieces were ,going to fire. Most whistles used by the British were manufactured by J & Hudson Co.