The Alien Coalition rarely collaborates with sincerity, and I don't think this situation will last for long. The Elf Race might already be meddling with negotiations.
After all, their strategic goals for this war have largely been achieved. To continue would be purely for the sake of allies.
Within the Alien Coalition, each race now heavily relies on the support of the Elf Race, and if the Elf Race wants to negotiate, they won't be able to stop them.
Considering the current situation, if it weren't for the fear of the Human Alliance pursuing responsibility afterward, perhaps just a hint of goodwill from the Elf Race would have the countries of the Central Continent tripping over themselves to compromise.
It would be best to stabilize the situation in Central Continent. If that proves impossible, then plan to ease the relations with its nations. Otherwise, the post-war situation will be extremely unfavorable for us!"