Factual error: In the whole episode, Romania is depicted as a monarchy with the king in a position that allows him to make political decisions. However, Romania ceased to be a monarchy in 1947. By the time depicted in the episode (circa 1997), Romania was a republic and its head of state was the president. Members of the ex-royal family did not hold any positions in the Romanian government and were certainly not authorized to represent Romania in international events.
Factual error: Enlisted soldiers are shown saluting each other, as well as addressing a sergeant as "sir." Enlisted personnel in real life never salute each other, nor are NCOs (like sergeants) ever addressed as "sir."