There are several synonyms for the term "common soldieries" depending on the context in which it is used. In a military context, synonyms would be enlisted personnel or foot soldiers. Other terms that could be used in this context include grunts, infantrymen, or rank and file soldiers. In a broader sense, "common soldieries" could be replaced with terms such as the working class, the proletariat, or the masses. Each of these terms conveys a sense of groups of people who are not necessarily individually notable but are important in aggregate. Ultimately, the choice of synonym would depend on the specific meaning and tone of the sentence in which "common soldieries" appears.