The SEECP was launched in 1996 in Sofia, when the countries of Southeast Europe laid the foundations of regional co-operation for the purpose of establishing a climate of confidence, good neighbourly relations and stability.
PSJIE je pokrenuta 1996. godine u Sofiji, kada su zemlje jugoistočne Evrope polozile temelje regionalne saradnje u cilju uspostavljanja klime poverenja, dobrosusedskih odnosa i stabilnosti.