Southeast Europe
This concept is based on the boundaries of the Balkan peninsula. The countries that have been described as being entirely within the region are: Albania, Kosovo, Bosnia and Herzegovina, Bulgaria, Macedonia and Montenegro.
Balkan Pact
The Balkan Pact helped to ensure peace between the signatory nations, but failed to stem regional intrigue. The countries of the pact surrounded Bulgaria, but on 31 July 1938 they signed an agreement with her in Salonika, repealing those clauses of the Treaty of Neuilly-sur-Seine and Treaty of Lausanne that mandated demilitarised zones on the Greco-Bulgarian and -Turkish borders, and allowing Bulgaria to re-arm herself.