In an attempt to halt the Serbo-Greek rapprochement, Bulgarian Prime Minister Geshov signed a protocol with Greece on 21 May agreeing on a permanent demarcation between their respective forces, effectively accepting Greek control over southern Macedonia.
Katses peatada Serbia-Kreeka leppimine sõlmis Bulgaaria peaminister Gešov Kreekaga 21. mail protokolli, leppides püsiva demarkatsiooniga nende vägede vahel, nõustudes tõhusalt Kreeka kontrolliga Lõuna-Makedoonia üle.