Greece was the only Balkan country with a navy powerful enough to deny use of the Aegean to the Ottoman Empire, thus a treaty between Greece and Bulgaria became necessary; it was signed in May 1912.
Kreeka oli ainus piisavalt võimsa sõjalaevastikuga Balkani riik, et takistada Osmanite riigil Egeuse mere kasutamist, seega muutus leping Kreeka ja Bulgaaria vahel hädavajalikuks; see sõlmiti mais 1912.