First of all, the state of Yan was not a very powerful or influential state in the early half of the warring state. It is more focused on its northeastern borders. While the kingdom of Zhao and Han were relatively weak in comparison to the other kingdoms and constantly sought help from greater powers. The contending states in most of 4th century B.C. is actually that of Wei, Chu, Qin, Qi, and Yue.
The Wei dominated politics for the later half of the 5th century B.C. under Wei Wen Hou for nearly half a century. Because Wei had the territory of He Dong region of Shan Xil, the wealthiest part of Jin and its center. The terrrain is highly prosperous, in addition to Wei Wen Hou's internal reforms and external alliance. Wei is the most developed state economically at this time and the most powerful.(its agricultural growth and irrigation is not much changed down to the days of the Republic!) Wei Wen Hou became the hegemon for over 50 years, but his successor Wu Hou was not as brilliant and changed many policies and ended Wei's hegemon.
Chu became the next great power under the reforms of Wu Qi and in 381 BC conquered the Chen, the Cai, and defeated the Yue and the Han and Wei in the north. But its power is also not lasting. Although it managed to conquer Yue and defeat Qi towards the end of the 4th century B.C.
The Tian family of the Qi took power in 386 B.C. and steadily grew in power to play the international scene and challenge Wei's supremacy. Qi expanded in all directions and fixed its laws. By the time of Qi Wei Wang, it is a power capable of exerting great influence. Qi defeated Wei in Gui Ling in 353 B.C. by helping the Zhao. Afterwards, the kingdom of Qi under Wei Wang dominated the central plains. In Ma Ling in 341B.C., a further defeat was inflicted upon Wei in the protection of Han, 100,000 Wei army perished, the crown prince Sheng was captured, and the general Pan Juan was killed, all three Jins(Zhao, Han and Wei) paid homage to Qi Xuan Wang.
The kingdom of Qin was not inactive, defeating Wei in its borders even prior to Shang Yang's reforms, in 362 B.C. it defeated Wei at Shao Liang(Han Cheng Jun of ShanXi), after the reforms made by Shang Yang, Qin defeated Wei in a series of battles, in 358, Qin defeated Han in Xi Shang(Shang Nan Jun of ShanXi). Four years later in 354, it defeated Wei in Yuan Li(Deng Cheng Jun) and conquered Shao Liang, three years later in 351 B.C. Shang Yang personally led a Qin army to Gu Yang(Mi Zhi Jun), Gu Yang is an important northwestern military post for the Wei, losing this strategic area is a blow to the Wei. In that same year, Qin built up its defense in Shang Nan Jun of Shan Xi in Wu Guan to prevent Chu's advances. Qin then moved its capital to Xian Yang. The Qin at this time controlled all the way up to the western frontier of the yellow river. In 340, taking the advantage of Wei's defeat by Qi, took much of the territory west of the yellow river.
The state of Yue was still very powerful down to its last days. The last of the powerful kings of Yue was Wu Jiang. He constantly attacked Qi and Chu. Even during the reign of the powerful Qi Wei Wang, Yue Wang Wu Jiang attacked Qi, Qi Wei Wang sent a messenger to tell Wu Jiang that attacking the Chu was more beneficial. This was done, only to see the Yue army totally crushed, Wu Jiang was killed, all the territory of Wu was captured by Chu. The kingdom of Yue became divided under many princes, all under the vassalage of Chu. However Yue did not exit the scene until 334 B.C., priot to that, Yue was a state comparable to Wei, Qi and Qin, more powerful than Zhao, Han and Yan.
This post has been edited by Yun: 13 March 2006 - 04:38 AM




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