The current article assesses the relationship of T. G.
Masaryk and Bulgaria during the first postwar years (1918-1923). It endeavours to answer the following research questions: was T.
G. Masaryk a driving force of Bulgarian foreign policy during the period in question? Was he capable of solving Bulgarian national problems after the WWI? In order to answer these questions, in my article I first focus on the views of the first Czechoslovak president on postwar Bulgaria and on Bulgarian national aspirations in Macedonia and Thrace.
Then I explore to what extent T. G.
Masaryk influenced relationship of defeated Bulgaria with the Kingdom of Serbs, Croats, and Slovenians and whether he contributed to Bulgaria's attempts to solve its national problems - the incorporation of Macedonia and Thrace into Bulgarian state or at least, to achieve autonomy for the both regions. In my article I rely on archival sources, published documents, Bulgarian and Czech/Czechoslovak periodical press as well as on secondary literature related to the subject.