Bad enough to have to face the full might of the Klingon Empire in battle. It is infinitely worse to do so knowing that your worlds and people are simply cannon fodder for your corrupt leadership and the foreign overlords they serve. To suffer all that and still stand and fight takes a particularly stiff backbone... the like of which Rebek, Berat, and Igrun obviously possess.
This is a wonderful precursor to the creation of the Thirteenth Order. Well done.