The Starspawns made a grave mistake in escalating this quiet war between themselves and humanity. Because it meant that humanity could escalate it further, too.
If they already knew about the purpose of blood testing, there was no reason to keep it a secret from everyone else. Cael told as much to the leaders of the Allies.
They agreed that even if the truth of Starspawns will scare people, it would be worth it. It was simply impossible to prepare for war on such a scale without anyone realizing things. The existence of the alliance itself was already telling.
A month after the attack on the testers, heralds spread the message over the countries of the Allies of the World. The rulers of countries gave speeches about the importance of uniting against common foes that threatened the existence of humankind.
All the usual stuff. Cael himself felt like he told it so often recently that it felt like grit on his teeth.