<a href="https://en.wikipedia.org/wiki/Serbo-Bulgarian_War" id="mwVg" rel="mw:WikiLink" title="Serbo-Bulgarian War">Serbo-Bulgarian War</a>: Bulgarian victory in the <a href="https://en.wikipedia.org/wiki/Battle_of_Slivnitsa" id="mwVw" rel="mw:WikiLink" title="Battle of Slivnitsa">Battle of Slivnitsa</a> solidifies the unification between the <a href="https://en.wikipedia.org/wiki/Principality_of_Bulgaria" id="mwWA" rel="mw:WikiLink" title="Principality of Bulgaria">Principality of Bulgaria</a> and <a href="https://en.wikipedia.org/wiki/Eastern_Rumelia" id="mwWQ" rel="mw:WikiLink" title="Eastern Rumelia">Eastern Rumelia</a>.