As the chamberlain revealed the context of the invitation letter, the last line regarding the mention of No Man's Land struck their minds the most.
What was No Man's Land? It was both the border as well as the barrier one had to pass if they wished to traverse the Rakos Empire, Zivot Empire, and the Vulkan Empire.
It was one area that they had collectively agreed upon to leave as a forbidden zone, and all of their respective empires always had an active military garrison stationed there.
Though it was merely a few thousand kilometers of open land with traces of a forgotten civilization... it also often acted as a neutral ground, especially for occasions like this.
The letter itself acknowledged Kahn as the new emperor of the Rakos Empire and wished to form an alliance with him and the entire empire's force for the Great War.
And it also mentioned the Abyss Empire.
