En las Guerras Mundiales, a los militares británicos se les llamaban “Tommies” y a los alemanes “Jerrys”:
Tommy Atkins or Thomas Atkins has been used as a generic name for a common British soldier for many years. The origin of the term is a subject of debate, but it is known to have been used as early as 1743.
Jerry was a nickname given to Germans during the Second World War by soldiers and civilians of the Allied nations, in particular by the British. Although the nickname was originally created during World War I, it did not find common use until World War II.