Filing a Formal Letter of Removal.

"It's time to file a letter of removal against him to the other Empires and The guild's main headquarters." Hamaru proposed.

"I agree!" The Fang stressed, "I had enough of his shenanigans."

"Let's add all of his previous failures in the past centuries." Winfried said coldly, "If we are doing this, then let's do it properly to get completely rid of him."

The Assembly members knew that it was difficult to remove Commander Samuel from power since his strength and old achievements were too prominent.

That's why no matter how many battles they lost due to him, they never bothered to think of filling a letter against him. 

Neither the empires nor the alliance would sack him because of a few lost battles.

The cause needed to be significant like betraying the human race to the void invasion or something like that.

In addition, if the letter failed to achieve its purpose, it would merely offend Commander Samuel, making him target them.