After all, the Tang Dynasty has always regarded itself as the kingdom of heaven and the kingdom of etiquette, and is proud of it.

Even if it is to fight Goguryeo, it is necessary to put oneself in the perspective of the messenger of justice, first sue the world, and count the crimes of Goguryeo.

Goguryeo was asked to take the initiative to plead guilty and obey the law, but Goguryeo did not comply, and all kinds of harassment continued.

In order to protect the face of the Great Tang Dynasty, the Tang Dynasty carefully and repeatedly studied and discussed, and used force to teach lessons when it was not possible.

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