 Complete the following phrase:  The Ansei Purge was ordered by Ii Naosuke on behalf of the bakufu faction. He was the Senior Minister during the period preceding the Meiji Restoration and was part of the kōbu gattai, the movement opposed by the Revere the Emperor, Expel the Foreigner sonnō jōi faction. The purge was carried out in an effort to quell opposition to trade treaties with the United States, Russia, Great Britain, France and the Netherlands, particularly under the 