In the history of the Tang Dynasty, Geshu Han and An Lushan were two legendary figures. Geshu Han was renowned for his bravery and military prowess, while An Lushan was famous for his political scheming and military talents. However, in a pivotal battle, Geshu Han was defeated by An Lushan. So, why couldn't Geshu Han defeat An Lushan? This article will analyze it from two aspects: strategic mistakes and fate factors.

First, strategic mistakes:

1. Disparity in forces

The war between Geshu Han and An Lushan was actually a contest of vastly different forces. An Lushan commanded a powerful army, consisting of hundreds of thousands of elite soldiers, while Geshu Han only led an army of tens of thousands. This significant gap in manpower put Geshu Han in a disadvantageous position in the battle.

2. Tactical mistakes

During the war, Geshu Han adopted an overly conservative tactical approach, attempting to consume An Lushan's forces through defense. However, this tactic did not work, allowing An Lushan's army to adjust their strategy calmly and gradually erode Geshu Han's defensive line. In the end, Geshu Han's defensive line was breached, and he was defeated.

Second, fate factors:

1. Weather and terrain

The outcome of war is often influenced by weather and terrain. In the war between Geshu Han and An Lushan, An Lushan had the advantage of terrain. His army was stationed in a higher place, which was advantageous for observing enemy movements and launching attacks. On the other hand, Geshu Han's army was in a lower position, making it difficult to fully utilize their combat capabilities. Additionally, the weather conditions at that time also had an impact on the war. The harsh weather caused Geshu Han's army's morale to drop and their combat effectiveness to decline.

2. Support and opposition

In war, popular support and opposition often determine the outcome. An Lushan demonstrated strong ambition and political scheming in the war, winning the support of many generals and soldiers. Although Geshu Han was brave and skilled in battle, he was inferior to An Lushan in political scheming. This caused Geshu Han to lose some popular support in the war, affecting the exertion of his combat effectiveness.

In summary, the main reasons why Geshu Han could not defeat An Lushan in the war are the disparity in forces, tactical mistakes, as well as the influence of weather and terrain and popular support and opposition. This war was not only a military contest but also a political struggle. Although Geshu Han was brave and skilled in battle, he was defeated by fate and political scheming in this conflict.

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