conquering the country
... that Sviatoslav of Kiev was invited by the Byzantine Empire to attack Bulgaria in order to force them to make concessions, but ended up conquering the country?
... that <a class="mw-redirect" href="./Sviatoslav_I_of_Kiev" id="mwDac" rel="mw:WikiLink" title="Sviatoslav I of Kiev">Sviatoslav of Kiev</a> was invited by the <a href="./Byzantine_Empire" id="mwDag" rel="mw:WikiLink" title="Byzantine Empire">Byzantine Empire</a> to attack <a href="./First_Bulgarian_Empire" id="mwDak" rel="mw:WikiLink" title="First Bulgarian Empire">Bulgaria</a> in order to force them to make concessions, but ended up <b id="mwDao"><a href="./Sviatoslav's_invasion_of_Bulgaria" id="mwDas" rel="mw:WikiLink" title="Sviatoslav's invasion of Bulgaria">conquering the country</a></b>?