Pigeons have played an important role in military communications throughout history, with their ability to fly long distances and deliver messages quickly and accurately. During World War I, pigeon post was used extensively by the British Army to send messages between troops on the front line and headquarters back home. In World War II, pigeons were also used for communication purposes, particularly in the D-Day landings where they carried vital information about troop movements and enemy positions. Today, pigeons are still used in military communications, although their role has been largely replaced by modern technology such as satellites and radios.