noun
Political term referring to a situation where no single nation or group dominates, often used in international relations.
冷戦時代、米ソの勢力均衡が世界の安定を保っていた。
During the Cold War, the balance of power between the US and the Soviet Union maintained global stability.
A loanword from English 'power balance', used in similar contexts but more casual and modern. 勢力均衡 is the formal, Sino-Japanese term.
Compound of 勢力 (power, influence) and 均衡 (balance, equilibrium). A Sino-Japanese term used primarily in political science.