No one had expected the situation in Centaurus to escalate to this point in just two days.
But it was not entirely without warning. When the first person notified had been Turkey Stark and the second had been Turkey Strange, they should have anticipated that it would ultimately turn into a turkey fight.
Of course, Thor the electric turkey could not be underestimated either. Nick had originally asked Strange to calm Thor down, but after the two extremists talked it over, they ultimately decided to settle the matter with their fists.
Stark going to Centaurus alone would have been fine. Although he did not have much patience for the emperor of that Kater civilization, he had at least been willing to search for the Guardians of the Galaxy together. But the moment Strange arrived, he blasted their palace flat with a magic energy cannon. Now there was truly no room left for negotiation.
On top of that, Strange had worked Thor into a fury. Thor felt that this damned little civilization was provoking Asgard, seeing a tiger doze off and thinking it could walk up and pat its backside. It had to be taught a lesson.
Once Asgard's fleet arrived, the whole situation became impossible to contain. Everyone knew that Asgardian ships in space were death notices, summonses from Hell. Anyone who saw them had to raise a level-one alarm immediately.
The Centaurus galaxy was an ungoverned region, something like the Golden Triangle of space. It sat right at the border of the Three Great Empires, and everyone needed such a buffer zone and intelligence exchange center.
Asgard sticking its foot in here was equivalent to moving against the borders of all Three Great Empires at once. Everyone felt threatened, so the fleets of the Three Great Empires set out