on June 18th, 1859, the British invaders arrived in Dagukou, Tianjin, intending to invade Beijing and Tianjin along the river, forcing the Qing government to pass the Tianjin Treaty. They fought with the Qing army fortified at Dagukou Fort. Although the Taiping Heavenly Kingdom was in full swing at that time, and the Qing Dynasty was a state erosion, it was a mess, but the Qing army in Dagukou really played well. They had previously blocked the river with sunken ships and other obstacles, making it difficult for British gunboats to launch fire. And using the terrorist tactics of deliberately showing weakness, not firing, and waiting for the British fleet to approach in a big way before suddenly attacking, several British boats were killed. After falling into chaos, Britain regrouped and attacked again. The British soldier was also very brave. Seeing that the naval gun couldn't win, he rushed to the beach and tried to attack by land and win the Dagukou Fort. As a result, they died a lot on the beach. At this time, in the nearby ocean, there is also an American fleet. At that time, the American government, together with Britain, France and Russia, diplomatically forced the Qing court to ratify the Tianjin Treaty. However, only Britain and France declared war on the Qing Dynasty, and it was later that the "Anglo-French Allied Forces" burned down our Yuanmingyuan. As for the American government, it is still in a neutral position in this war. You can find this in the history books. At this time, the commander of the American fleet, named "Josiah Tatnall", saw that the white Englishman had failed to attack and was being slaughtered on the beach by the yellow China. He couldn't help it any longer. Regardless of his government's position, he ordered the fleet to open fire on the Qing army at Dagukou Fort and ordered American soldiers to go ashore to help the British. So what is his order to his subordinates? The original text of this order is: "The blood is thicker than water"-"Blood is thicker than water". Josiah Tatnall's logic is simple-it doesn't matter if you don't declare war because you want to help cousin British fight the sick man of East Asia. Anyway, it won in the end, and "The Blood Is Thicker Than Water" has since become a much-told story and a famous western proverb. As for the commander of the American fleet, he was not punished for violating the government's position, because it won the interests of the United States.
Now we know that the word "blood is thicker than water" records the history of the massacre of China people by Western (White Blood) powers in disregard of diplomatic norms. It is the theoretical basis for two hooligans to bully a weak person "it is not negotiable to beat you", and it is the best embodiment of the "law of the jungle" in international politics that has been used to this day. Moreover, this word is still used in English.
But the word "blood is thicker than water" is widely used in China, and it is extended to family ties, which is quite different from the original meaning of this word.