He sighs.
"...Because someone's being stupid," he summarizes. "When the Blight started, King Cailan took the army down to where a lot of darkspawn were gathering, and he tried to fight them. But there were a hundred times more darkspawn than anybody thought, and Cailan and most of the army died in the fighting. His wife's father, Loghain, was there, leading part of the army; when Loghain saw the king about to be overrun by thousands of darkspawn, he took his part of the army and ran away. Now Loghain is the Regent - that's like a temporary king, for when the king dies and there isn't an heir or they can't find the heir right away or the heir is a child and needs to grow up before they can start ruling the country. And Loghain is being very stupid about the Blight."