Diplomatic actions

Diplomatic actions both affect diplomatic relations and leverage them for strategic and tactical benefits. See diplomatic modifiers for how each action affects relations.

List of Actions
The player civilization can perform several diplomatic actions:
 * Negotiate trades and treaties (see below)
 * Declare war
 * Offer friendship
 * Request that foreign ships leave domestic territory
 * Demand tribute
 * Offer tribute

Treaties
Treaties are formalized commitments that have a persistent impact on relations with the other civilization.