This particular one... It is difficult to say. After all, this isn't my homeland.

... To make a long story short... Lord Chrom's heart is generous. Two of our Shepherds told us that their home had been taken over by a tyrant years ago, and they had been forced to flee. They always planned to return, but then they heard how much power he had amassed, and how much innocent blood had been shed. They could no longer simply wait for a solution - one had to be forced... so they asked milord for his aide.