mobilized more than 600,000 soldiers
... that Bulgaria mobilized more than 600,000 soldiers, or 12–13% of its population, upon its entry to World War I?
... that <a href="./Bulgaria" id="mwFH8" rel="mw:WikiLink" title="Bulgaria">Bulgaria</a> <b id="mwFIA"><a href="./Mobilization_of_the_Bulgarian_Army_in_1915" id="mwFIE" rel="mw:WikiLink" title="Mobilization of the Bulgarian Army in 1915">mobilized more than 600,000 soldiers</a></b>, or 12<span id="mwFII" typeof="mw:Entity">–</span>13% of its population, upon its entry to <a href="./World_War_I" id="mwFIM" rel="mw:WikiLink" title="World War I">World War I</a>?