Barracks

The Barracks is a class of building that allows for production and upgrading of infantry units. It is typically the first military building unlocked, which all factions have access to except for the Mongols. It is an essential building for keeping the player safe early on or establishing a rush strategy. For most civilizations, the Barracks is the only military building available without the research of Basic Military Development.

In-Game Description
"Produces infantry and spearmen."