Unit

A Unit is a formation of soldiers or creatures that the player can recruit to engage enemy armies and conquer settlements. Units are a primary aspect of the game, and are constructed at military buildings. Units are general more effective when led by a General, and if one is not present, the most experienced unit will be promoted as a Captain for the Battle.

Units
For a full list of units in Hyrule: Total War and its expansions: see here

Types
For a list of unit types: please go here

Experience
Units gain increased attributes and combat skills as they survive, and more importantly win, more battles. This is noted by bronze, silver, or gold chevrons, on their unit card.