In fact,
Han Dong had also spent a long time considering the 'meeting issue.'
He had been separated from the main force for nearly two years.
Using his unique abilities, relationships, opportunities, and efforts, he had established an identity and authority in London City only second to the Priest, including direct authorization from his biological mother.
Part of this was for his own convenience and that of his estate, but a larger part was for the Expeditionary Army and the human cause.
How to meet with everyone again?
If he were to reveal his identity to the Knight Regiment in a grand manner, it might feel exhilarating momentarily, but it would definitely trigger a series of chain reactions.
It could even affect the credibility of the captains and shake the core beliefs of all the knights.