<a href="https://en.wikipedia.org/wiki/Serbo-Bulgarian_War" id="mwpA" rel="mw:WikiLink" title="Serbo-Bulgarian War">Serbo-Bulgarian War</a>: The decisive <a href="https://en.wikipedia.org/wiki/Battle_of_Slivnitsa" id="mwpQ" rel="mw:WikiLink" title="Battle of Slivnitsa">Battle of Slivnitsa</a> begins.