"Gameplay (Civ4)"@en . . "Diplomacy in Civ4 generally involves the trading of goods. Different trade options require different advancements to unlock, and some things may only be traded for certain other things (e.g., per turns deals must be compensated by another per turn deal). Players may trade technologies, resources (including luxuries such as wine), maps (to reveal information about the rest of the world), and gold. Advanced diplomacy options include the creation of trade embargoes, the promising of military aid, and the adoption of particular civics and/or a religion."@en . . "Diplomacy in Civ4 generally involves the trading of goods. Different trade options require different advancements to unlock, and some things may only be traded for certain other things (e.g., per turns deals must be compensated by another per turn deal). Players may trade technologies, resources (including luxuries such as wine), maps (to reveal information about the rest of the world), and gold. Advanced diplomacy options include the creation of trade embargoes, the promising of military aid, and the adoption of particular civics and/or a religion. The reasoning behind diplomacy is more transparent when compared to Civ3: the Diplomacy window now displays not only the other leaders' attitudes (gracious, friendly, pleased, cautious, annoyed, furious), but why they feel that way (e.g. \"-2: You refused to stop trading with our worst enemies!\"). When a leader is friendly or gracious towards one's civilization, they are more likely to accept deals without unfair bargaining. Another new feature is the new abilities of the United Nations. The United Nations wonder allows passing global resolutions (e.g. the Nuclear Non-Proliferation Treaty) in addition to granting access to diplomatic victory. Unlike real-world resolutions, Civilization IV's resolutions are binding, except for in Beyond the Sword, in which you have the option of defying resolutions."@en . . .