After repelling the allied forces of the two empires, Du You's fame greatly increased among the upper class of the two empires.
That's right, only the upper class of the two empires is aware of the situation, the other empires aren't clear on the specifics. After all, it isn't something to be proud of, and both empires are quite severely damaged now.
Once other empires discover their weakness, they will surely send troops to attack, which would not be good news for them.
Fortunately, this territory is caught between the two empires, so they're able to easily suppress the information. The other empires only believe that these two countries are at war, resulting in severe losses on both sides.
As for the deaths in the upper class, that information is being strictly suppressed. Perhaps it won't be suppressed for long, but they can delay it one day at a time. With enough time, there is at least room for maneuver.
