Taizong and his son 's conquest of the Gokturk , Xueyantue , Gorguryeo and other enemy empires ensured relative peace for China .
During Taizong 's reign and until the An Shi Rebellion , the Chinese Empire went through a relatively peaceful period of economic development .
Taizong and Taizong 's son 's conquest of the Gokturk , Xueyantue , Gorguryeo and other enemy empires ensured relative peace for China .
During Taizong 's reign and until the An Shi Rebellion , the Chinese Empire went through a relatively peaceful period of economic development .