 Yuan Chonghuan hastily sent an army to drive off the raiders from the walls of Beijing, but political damage had already been done.Yuan Chonghuan was accused of treason for letting this happen, and in 1630 he was executed by slow dismemberment while his family were exterminated or exiled.Following Hung Taiji's raid, regular garrison troops in the western defence zones along the Great Wall were sent east to defend the capital, which had the unintended consequence of instigating more instability.