Accepting the Elf Princess was a collective decision made by the upper echelons of the Great Tang Empire, as the Great Tang Empire needed to find its own stance in the upcoming new World War.
The new stance is to support the Poplar Empire: Yangmu Yi was very happy that the Great Tang Empire chose to support him, it made all the weapons purchases biased towards the Great Tang Group worthwhile.
After Tang Mo expressed his support for the Poplar Empire to some extent, the Poplar Empire immediately gained confidence and began to make vigorous preparations along the border.
As if it wasn't the Poplar Empire that had taken the lead in condemning the Great Tang Empire before, Yangmu Yi enthusiastically proclaimed the "Poplar-Great Tang" trans-sea alliance as unbreakable, insisting that both sides should maintain a cooperative relationship based on mutual understanding and support in any field.