You would need a date for each entry, as things did get quite interesting in the Balkans, with people jockeying fornthe support or neutrality of the Bulgarians, Greeks, Ottomans, and Romanians. Anyways, Thailand would be in a very precarious position and would de facto be making war by themselves. It would have been easier in a WWII or Cold War setting where there were more weapons available for locals, but they might have trouble getting allies propped up in Burma and Indochina. People have liked to throw Ethiopia into the Central Powers due to one of their princes supporting it, but it is a good thing you did not add it, considering the Ethiopians got rid of that guy as he wanted to convert to Islam to get support from the Somalis he wanted to annex.