Let Loose the Dogs of War!
Plans had been made, maps studied, the situation read as best it could be.  There was no more time for talk.  The Mothership would be leaving by the next day.  If the aliens who had stolen this world were not defeated now, it wasn't likely they ever would be. 

But these aliens had never faced people with the kinds of powers that the Avengers possessed.  The paltry number of defenders the planet Earth had had when they had arrived had died easily.  And this world possessed no Inhumans, no Eternals, no Deviants.  No one would or could fight back on the scale needed.

But the time of domination was over.