Two days after the meeting with the Yamato ambassador, the tension in the Far East was rising. The Han Dynasty is looking to reject the ultimatum of the Yamato Empire, meaning a war between them could erupt at any moment.
This affects Alexander's daily life. Instead of having his usual daily routine of working in the morning, meeting with the ministers, and planning another product for the IDS, he was stuck in the General Staff Building overseeing the situation.
As reiterated, this conflict could implicate the Ruthenian Empire as they were the reason why the conflict between the two countries exists. The Yamato Empire won't take the Ruthenia Empire seriously as they've already fought them to a standstill and later found out about the Baltic fleet bluff. If Ruthenia dares to intervene, the Yamato will give them another black eye just like before.
Having no leverage on the Yamato Empire, Alexander leaned on Diana as a mediator.