In 669 the people of Goguryeo revolted in response to Tang governance. In response the Tang forcibly deported tens of thousands of households and resettled them in empty areas south of the Changjiang (Yangtze) and Huai River, each in contemporary China. The weak and poor were left behind and assigned to guard duty in service of the protectorate. Different numbers of households are given by various sources. According to the Samguk Sagi citing Chinese sources, the Zizhi Tongjian says 38,200 households, the Old Book of Tang and Tongdian say 28,200, and the New Book of Tang says 30,000. The Samguk Sagi says 38,300. Mark Cartwright gives a number of 200,000 people forcefully resettled including the king. Wang Zhenping gives a figure of 78,000 households.
In 671, Sillan forces drove out the Tang. In 675 the Tang attacked Silla and defeated them in Gyeonggi. In response Munmu of Silla dispatched a tributary mission to Tang with apologies. Gaozong accepted Munmu's apologies and withdrew Tang troops to deal with the Tibetan threat in the west. Seeing the Tang's strategic weakness, Silla renewed the advance on Tang territory. Silla took all the territory south of the Taedong River in a series of battles in 676.
By 676 the Tang were forced to relocate the protectorate seat to the more easily defendable city of Liaoyang.
The Protectorate General to Pacify the East, otherwise known as the Andong Protectorate, was abandoned in 756 or ended in 761.
"舊唐書". 中國哲學書電子化計劃. Retrieved 3 August 2017. 安東都護府總章元年九月,司空李勣平高麗。高麗本五部,一百七十六城,戶六十九萬七千。其年十二月,分高麗地為九都督府,四十二州,一百縣,置安東都護府於平壤城以統之。In the ninth month of the first year of the Zongzhang era [668], the Minister of Works Li Ji pacified Goguryeo. Originally Goguryeo had 5 regions, 176 cities, and 697,000 households. In the twelfth month of that year, Goguryeo's territory was divided into 9 commanderies, 42 prefectures, and 100 counties. The Andong Protectorate was situated at Pyeongyang to govern it. http://ctext.org/wiki.pl?if=gb&res=456206&searchu=%E5%AE%89%E6%9D%B1%E9%83%BD%E8%AD%B7%E5%BA%9C
Wang 2013, p. 81. - Wang, Zhenping (2013), Tang China in Multi-Polar Asia: A History of Diplomacy and War, University of Hawaii Press
Xiong 2008, p. 43. - Xiong, Victor (2008), Historical Dictionary of Medieval China, United States of America: Scarecrow Press, Inc., ISBN 978-0810860537
Wang 2013, p. 81. - Wang, Zhenping (2013), Tang China in Multi-Polar Asia: A History of Diplomacy and War, University of Hawaii Press
"Gaozong of Tang relocates Goguryeo refugees". 한국사데이터베이스 (Korean History Database). Retrieved 2023-11-01. https://db.history.go.kr/item/compareViewer.do?levelId=sg_022r_0020_0500
Cartwright, Mark. "Goguryeo". World History Encyclopedia. Retrieved 2023-11-01. https://www.worldhistory.org/Goguryeo/
Wang 2013, p. 81. - Wang, Zhenping (2013), Tang China in Multi-Polar Asia: A History of Diplomacy and War, University of Hawaii Press
Lee, Jeongbin (2009). "고연무의 고구려 부흥군과 부흥운동의 전개 (The Restoration Movement of Koguryo)". Yŏksa Wa Hyŏnsil. 72 (12): 133–136 – via KCI. https://www.kci.go.kr/kciportal/ci/sereArticleSearch/ciSereArtiView.kci?sereArticleSearchBean.artiId=ART001356755
Wang 2013, p. 82. - Wang, Zhenping (2013), Tang China in Multi-Polar Asia: A History of Diplomacy and War, University of Hawaii Press
Seth 2020, p. 45. - Seth, Michael J. (2020). A Concise History of Korea: From Antiquity to the Present. Lanham, Maryland: Rowman & Littlefield. p. 45. ISBN 978-1-5381-2898-5.
Wang 2013, p. 83-84. - Wang, Zhenping (2013), Tang China in Multi-Polar Asia: A History of Diplomacy and War, University of Hawaii Press
Wang 2013, p. 83-84. - Wang, Zhenping (2013), Tang China in Multi-Polar Asia: A History of Diplomacy and War, University of Hawaii Press
Seth, Michael J. (2020). A Concise History of Korea: From Antiquity to the Present. Lanham, Maryland: Rowman & Littlefield. p. 45. ISBN 978-1-5381-2898-5. 978-1-5381-2898-5
"舊唐書". 中國哲學書電子化計劃. Retrieved 3 August 2017. 上元三年二月,移安東府於遼東郡故城置。儀鳳二年,又移置於新城。In the second month of the third year of the Shangyuan era [676], the seat of Andong was moved to the Old City of Liaodong. In the second year of the Yifeng era [677], it was move again, this time to Xincheng. http://ctext.org/wiki.pl?if=gb&res=456206&searchu=%E9%81%BC%E8%A5%BF
Xiong 2008, p. 43. - Xiong, Victor (2008), Historical Dictionary of Medieval China, United States of America: Scarecrow Press, Inc., ISBN 978-0810860537
Wang 2013, p. 84. - Wang, Zhenping (2013), Tang China in Multi-Polar Asia: A History of Diplomacy and War, University of Hawaii Press
"舊唐書". 中國哲學書電子化計劃. Retrieved 3 August 2017. 上元三年二月,移安東府於遼東郡故城置。儀鳳二年,又移置於新城。In the second month of the third year of the Shangyuan era [676], the seat of Andong was moved to the Old City of Liaodong. In the second year of the Yifeng era [677], it was move again, this time to Xincheng. http://ctext.org/wiki.pl?if=gb&res=456206&searchu=%E9%81%BC%E8%A5%BF
Xiong 2008, p. 43. - Xiong, Victor (2008), Historical Dictionary of Medieval China, United States of America: Scarecrow Press, Inc., ISBN 978-0810860537
Wang 2013, p. 84. - Wang, Zhenping (2013), Tang China in Multi-Polar Asia: A History of Diplomacy and War, University of Hawaii Press
Wang 2013, p. 85. - Wang, Zhenping (2013), Tang China in Multi-Polar Asia: A History of Diplomacy and War, University of Hawaii Press
"舊唐書". 中國哲學書電子化計劃. Retrieved 3 August 2017. 開元二年,移安東都護於平州置。天寶二年,移於遼西故郡城置。In the second year of the Kaiyuan era [714], the Andong Protectorate was moved to Ping Prefecture. In the second year of the Tianbao era [743], it was moved to the old commandery seat of Liaoxi. http://ctext.org/wiki.pl?if=gb&res=456206&searchu=%E9%81%BC%E8%A5%BF
Wang 2013, p. 85. - Wang, Zhenping (2013), Tang China in Multi-Polar Asia: A History of Diplomacy and War, University of Hawaii Press
Xiong 2008, p. 43. - Xiong, Victor (2008), Historical Dictionary of Medieval China, United States of America: Scarecrow Press, Inc., ISBN 978-0810860537
Wang 2013, p. 85. - Wang, Zhenping (2013), Tang China in Multi-Polar Asia: A History of Diplomacy and War, University of Hawaii Press
"舊唐書". 中國哲學書電子化計劃. Retrieved 3 August 2017. 開元二年,移安東都護於平州置。天寶二年,移於遼西故郡城置。In the second year of the Kaiyuan era [714], the Andong Protectorate was moved to Ping Prefecture. In the second year of the Tianbao era [743], it was moved to the old commandery seat of Liaoxi. http://ctext.org/wiki.pl?if=gb&res=456206&searchu=%E9%81%BC%E8%A5%BF
Wang 2013, p. 85. - Wang, Zhenping (2013), Tang China in Multi-Polar Asia: A History of Diplomacy and War, University of Hawaii Press
Xiong 2008, p. 43. - Xiong, Victor (2008), Historical Dictionary of Medieval China, United States of America: Scarecrow Press, Inc., ISBN 978-0810860537
Wang 2013, p. 85. - Wang, Zhenping (2013), Tang China in Multi-Polar Asia: A History of Diplomacy and War, University of Hawaii Press
Xiong 2008, p. 43. - Xiong, Victor (2008), Historical Dictionary of Medieval China, United States of America: Scarecrow Press, Inc., ISBN 978-0810860537