Tsar Nicholas II of Russia, being well informed, tried to stop the upcoming conflict on 8 June, by sending an identical personal message to the Kings of Bulgaria and Serbia, offering to act as arbitrator according to the provisions of the 1912 Serbo-Bulgarian treaty.
Venemaa tsaar Nikolai II, olles hästi informeeritud, püüdis saabuvat konflikti 8. juunil peatada, saates sarnased isiklikud teated Bulgaaria ja Serbia kuningatele, pakkudes enda tegutsemist vahekohtunikuna vastavalt 1912. aasta Serbia-Bulgaaria lepingu sätetele.