Original sentence: Armenia–Serbia relations refer to bilateral relations between Armenia and Serbia.Diplomatic relations between the countries were established on 14 January 1993.Six agreements of mutual cooperation had been signed between the countries
Edited sentence: Armenia–Serbia relations have been friendly between the two countries since they were established.Diplomatic relations between the countries have been established on 14 January 1993.Even though Armenia and Serbia have traditionally good relations, only six agreements of mutual cooperation had been signed between the countries