三十六计睡前故事--顺手牵羊

小宝贝最近总是让我讲三十六计故事当睡前故事。于是现学现卖，找了一个“顺手牵羊”计的故事。顺手牵羊计就是乘人不备突袭敌人防备空虚的要地。与这一计有关的历史故事是李愬雪夜袭蔡州。

李愬雪夜袭蔡州的故事发生在唐朝，是一次著名的奇袭战例。以下是这个故事的主要内容：

1. 背景：唐朝时期，淮西节度使吴元济反叛，唐廷出兵讨伐，但屡遭败绩。李愬，作为唐名将李晟之子，被任命为隋、唐、邓节度使，负责讨伐吴元济。
2. 准备：李愬到任后，推诚待人，抚恤士卒，信用降将，搜集敌情，为讨吴作了充分准备。
3. 奇袭：元和十二年(817年)十月，李愬趁吴元济不备，决定出奇兵袭击吴元济的根本重地蔡州。出兵之日，天色阴晦，雨雪不止，大风把旌旗都刮裂了，马冻得不能跳跃，不少士兵抱着兵器冻僵而死。
4. 行军：在大风雪中，李愬率领的军队强行军35公里，终于抵达蔡州。由于唐军已有30余年未到蔡州城下，蔡州人毫无戒备，未发现唐军的行动。
5. 攻城：李愬命令士卒击打城附近的鸡鸭池中的鸡鸭，以掩盖行军声。四更时，李愬军到达蔡州城下，守城者仍未发觉。李祐、李忠义在城墙上掘土为坎，身先士卒，登上外城城头，杀死熟睡中的守门士卒，只留下巡夜者，让他们照常击柝报更，以免惊动敌人。随后打开城门，迎纳大唐军，接着又依法袭取内城。
6. 吴元济的反应：鸡鸣时分，雪渐止，李愬进至吴元济外宅。这时，有人觉察情形有异，急告吴元济说官军来了。吴元济高卧未起，笑着回答说，俘囚作乱，天亮后当杀尽这些家伙。接着，又有人报告说城已陷。元济仍漫不经心地说，这一定是洄曲守军的子弟向我索求寒衣。
7. 结局：李愬入城后，一面派人进攻牙城，一面厚抚董重质的家属，遣其子前往招降。董重质单骑至李愬军前投降，吴元济丧失了洄曲守军回援的希望。十二日，唐军再次攻打牙城，蔡州百姓争先恐后地负柴草助唐军焚烧牙城南门。黄昏时分，城门坏，吴元济投降。申、光二州及诸镇兵2万余人亦相继降唐，淮西遂平。
   这个故事展示了李愬的智谋和勇气，以及他如何通过出其不意的奇袭战术，成功地结束了淮西地区三十二年的割据局面。

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Lately, my little baby has been asking me to tell 36 stories as bedtime stories. So I learned and sold now, and found a story of "hand-in-hand" scheme. The hand-to-hand strategy is to take advantage of the unpreparedness of people to raid the enemy's defenses of empty important places. The historical story related to this plan is Li Yuxue's night attack on Caizhou.

The story of Li Yuxue's night attack on Caizhou took place in the Tang Dynasty and was a famous example of a surprise attack. Here are the main takeaways from the story:

1. Background: During the Tang Dynasty, Wu Yuanji rebelled in Huaixi Jiedu, and the Tang court sent troops to fight, but was repeatedly defeated. Li Yu, as the son of the famous Tang general Li Sheng, was appointed as the envoy of the Sui, Tang, and Deng festivals, and was responsible for the crusade against Wu Yuanji.
2. Preparation: After Li Yu took office, he treated people with sincerity, compensated his soldiers, demoted his generals, collected enemy information, and made full preparations for the fight against Wu.
3. Surprise attack: In October of the 12th year of Yuanhe (817), Li Yu took advantage of Wu Yuanji's unpreparedness and decided to attack Caizhou, the fundamental stronghold of Wu Yuanji. On the day of the army, the sky was overcast, the rain and snow did not stop, the strong wind blew the flags apart, the horses were so frozen that they could not jump, and many soldiers froze to death with their weapons.
4. March: In a heavy snowstorm, the army led by Li Yu forced a 35-kilometer march and finally arrived in Caizhou. Since the Tang army had not arrived at the city of Caizhou for more than 30 years, the people of Caizhou were unguarded and did not discover the Tang army's movements.
5. Siege: Li Yu ordered his soldiers to beat the chickens and ducks in the chicken and duck pond near the city to hide the sound of the march. During the fourth watch, Li Yu's army arrived at the city of Caizhou, but the defenders of the city still did not notice. Li You and Li Zhongyi dug the earth on the city wall as a barrier, took the lead, climbed to the top of the outer city, killed the sleeping guards, and left only the night watchmen, so that they could strike the guard as usual, so as not to alarm the enemy. Then he opened the city gate to welcome the Tang army, and then attacked the inner city according to law.
6. Wu Yuanji's reaction: When the rooster crowed, the snow gradually stopped, and Li Yu entered Wu Yuanji's outer house. At this time, someone noticed that the situation was different and urgently told Wu Yuanji that the official army was coming. Wu Yuanji did not get up, and replied with a smile, the prisoners are in chaos, and these guys should be killed after dawn. Then there was another report that the city had fallen. Yuan Ji still said casually, this must be the son of the Huanqu defenders asking me for winter clothes.
7. Ending: After Li Yu entered the city, he sent people to attack Yacheng on the one hand, and on the other hand, he comforted Dong's family members and sent his son to surrender. Dong Chongzhi rode alone to surrender in front of Li Yu's army, and Wu Yuanji lost the hope of returning to the defenders of Huiqu. On the twelfth, the Tang army attacked Yacheng again, and the people of Caizhou rushed to carry firewood and grass to help the Tang army burn the south gate of Yacheng. At dusk, the city gate was broken, and Wu Yuanji surrendered. More than 20,000 soldiers from Shen, Guang and Zhuzhen also surrendered to Tang one after another, and Huaixi was peaceful.
   The story shows Li Yu's resourcefulness and courage, and how he succeeded in ending the 32-year secession of the Huaixi region through surprise tactics.