Axis & Allies Wiki

The term used in TripleA for Nation. You are limited to a maximum of 20 players. In the standard scenarios, the plural of the locational word is used, for example Germans is used for Germany.

In the xml, this used to define each nation.

<player name="Americans" optional="false"/>

optional just means 'does this player require a capital?'. if a player is optional, some delegates may not work as expected for that player.