"Xianbei"@en . "Spring 228-August 234"@en . . "Zhuge Liang's Northern Expeditions"@en . "Shu Han"@en . "Cao Wei strategic victory, Shu Han tactical victory, overall expedition failure"@en . "Northern Expeditions"@en . . . "Cao Wei"@en . "After Liu Bei established himself in Yi Province in 215, the essential prerequisites of the plan had been completed. The geopolitical arrangement envisaged by Zhuge Liang proved, however, to be a militarily unstable one. The alliance with the state of Wu in the east broke down over the issue of the occupation of Jing Province. By 223, the province had been lost and Liu Bei, as well as some of his top generals, were dead. Even after Zhuge Liang re-established friendly relations with Wu, his original plan had been markedly altered since only the left prong could be executed."@en . . . . "Gansu and Shaanxi, China"@en . "After Liu Bei established himself in Yi Province in 215, the essential prerequisites of the plan had been completed. The geopolitical arrangement envisaged by Zhuge Liang proved, however, to be a militarily unstable one. The alliance with the state of Wu in the east broke down over the issue of the occupation of Jing Province. By 223, the province had been lost and Liu Bei, as well as some of his top generals, were dead. Even after Zhuge Liang re-established friendly relations with Wu, his original plan had been markedly altered since only the left prong could be executed. In Zhuge Liang's much quoted memorial Chu Shi Biao of 227, he explained to Liu Bei's son and successor Liu Shan in highly ideological terms the reasoning for his departure from the capital Chengdu: \"We should lead the three armies to secure the Central Plain in the north. Contributing my utmost, we shall exterminate the wicked, restore the house of Han and return to the old capital. Such is this subject's duty in repaying the Former Emperor and affirming allegiance to Your Majesty.\""@en . . . . . "Qiang people"@en . . . . "the wars of the Three Kingdoms period"@en . . . .