The term 'reduction of tension' is often used in the context of international relations and diplomacy. It refers to a process of easing tensions between two or more countries, usually through diplomatic negotiations. The term 'detente' is often used to describe this process, which is derived from the French word for 'RELAXATION'. Detente is a diplomatic policy of reducing tensions between two or more countries, often through negotiations and agreements. This can involve economic, military, or political concessions, as well as cultural exchanges.