| Term | Definition |
| affront | To insult intentionally; An open or intentional offense, slight, or insult. |
| altercation | A heated and noisy quarrel. |
| antagonist | One who opposes and actively competes with another, adversary |
| bellicose | Warlike in manner or temperament |
| breach | A breaking up or disruption of friendly relations |
| contentious | Quarrelsome |
| dissension | A difference of opinion, especially one that leads to contention or strife |
| rancor | Bitter, long-lasting resentment; ill will |
| retribution | Something given or demanded in repayment |
| schism | A separation or division into factions |
| arbitration | The process by which the parties in a dispute submit their differences to the judgment of an impartial person or group. |
| attache | A person officially assigned to the staff of a diplomatic office in a foreign country to serve in some particular capacity |
| consulate | The premises occupied by a consul, an official appointed by a government to reside in a foreign city in order to represent his or her government's commercial interests and to give assistance to its citizens there. |
| covenant | A binding agreement made by two or more persons or parties |
| discretion | The quality of demonstrating a cautious reserve in one's speech or behavior; prudence |
| emissary | An agent sent to represent or advance the interests of a person, group, or nation |
| entente | An agreement between two or more governments or powers for cooperative action or policy |
| Machiavellian | Of or pertaining to the doctrine of the Italian diplomat Niccolo Machiavelli, a doctrine that denies the relevance of morality in political affairs and holds that craft and deceit are justified in pursuing and maintaining political power |
| protocol | The forms of ceremony and etiquette observed by diplomats and heads of states. |
| status quo | The existing condition or state of affairs |