In 236 under the order of Emperor Ming of Cao Wei, Sima Yi conquered the Gongsun family and annexed Liaodong, Lelang and Daifang to Wei.
Emperor Gaozong order withdrawal of Tang forces from the Korean Peninsula entirely and moved the Protectorate General to Pacify the East to Liaodong (遼東, in modern Liaoyang, Liaoning) and the commandant of Xiongjin (熊津), who governed the former Baekje territory at Sabi, to Geonan (建安, in modern Yingkou, Liaoning), allowing Silla eventually expelled Tang out of the Korean Peninsula and unified the parts of the peninsula south of the Taedong River.
Prior to his surrender, he was the governor-general of northeastern Zhili and Liaodong.
The title was first seen in a speech between 283 and 289, when the Xianbei chief Murong Tuyuhun tried to escape from his younger stepbrother Murong Hui, and began his route from Liaodong to the areas of Ordos Desert.
Emperor Gaozong ordered withdrawal of Tang forces from the Korean Peninsula entirely and moved the Protectorate General to Pacify the East to Liaodong, allowing Silla to eventually expel Tang out of the Korean Peninsula and unify the parts of the peninsula south of the Taedong River.
In 1214 Jin dispatched Puxian Wannu to Liaodong, but he was defeated around Kaiyuan.
Sima Yi's Liaodong campaign occurred in 238 during the Three Kingdoms period of Chinese history.
Emperor Yang personally led part of the army to put the important city Liaodong (遼東, in modern Liaoyang, Liaoning) under siege, while he sent the generals Yuwen Shu and Yu Zhongwen (于仲文) to lead the rest of the army deep into Goguryeo territory, heading toward the Goguryeo capital Pyongyang, joined by the fleet commanded by the general Lai Hu'er (來護兒).
Xinle culture (5500-4800 BC), Neolithic culture in northeast China, found primarily around the lower Liao River on the Liaodong Peninsula in Liaoning
Emperor Yang's main forces put Goguryeo's key northern city Liaodong (遼東, in modern Liaoyang, Liaoning) under siege (although he was ultimately unable to capture it), but sent Yuwen with a branch army to head deep south, across the Yalu River, heading directly toward the Goguryeo capital Pyongyang.