invasion of Sasanian Armenia
... that in 543 a Byzantine army was unexpectedly defeated by a force less than one-seventh its size, during their invasion of Sasanian Armenia?
... that in 543 a Byzantine army was unexpectedly defeated by a force less than one-seventh its size, during their <b id="mwAyA"><a class="mw-redirect" href="./Battle_of_Anglon_(543)" id="mwAyE" rel="mw:WikiLink" title="Battle of Anglon (543)">invasion of Sasanian Armenia</a></b>?