That's true as well, although the Levée en Masse during the French Revolution was the first known example of mass conscription we have. It's official decree begins with:
Originally Posted by Lark
From this moment until that in which the enemy shall have been driven from the soil of the Republic, all Frenchmen are in permanent requisition for the service of the armies. The young men shall go to battle; the married men shall forge arms and transport provisions; the women shall make tents and clothing and shall serve in the hospitals; the children shall turn old linen into lint; the aged shall betake themselves to the public places in order to arouse the courage of the warriors and preach the hatred of kings and the unity of the Republic.