Isabella's Situation 

Minos had signed agreements with the nobility of Vogel. Because of this, he could not threaten the powers of that state gratuitously nor use the black hole or Black Hole Bomb against the powers of the Assembly.

But nothing prevented him from lobbying for the Black Plain's interests with the Assembly of Vogel's representatives.

He was the ruler of a state with many resources at his disposal and possibilities that could already be interesting for even low-level Spiritual Saints. So financially convincing certain agents of those Vogel organizations should not be impossible for Minos.

On the other hand, he had never promised that he would not use his 'ordinary' powers against the Assembly members. As such, Minos already wanted his army to prepare to accompany him toward that state within a period of up to 2 years.

If fighting were necessary, they would fight. But if they could settle the matter by simple voting, that would be better.