He is going to be waiting a long time then.
In one elseworld, Lex killed Supes as a baby and reverse engineered kryptonian solar absorption to create super efficient solar technology.
Then there's the literally infinite quantum field that Captain Atom taps into. If Zoat doesn't use Silver Shield, since he had never heard of the character before I mentioned him, then instead of a quantum field dilustel space whale they got the dilustel from a space ship, well one would have to assume that the spaceship used the dilustel as the power source.
Martin Allard was able to duplicate Captain Atom's origin using X-ionized material to also tap into the quantum field.
Maybe Mars is bigger on the inside?
In their revised origin the Faceless Hunters are one of the three races of Saturn, created by the
Yellow Martians, and the Faceless Hunters have either the technology or the technique to change their size from subatomic to "fee fi fo fum."
So it's possible. Zoat probably won't do it like that, but possible.
Very much not happening in this story.
What, did Ghosts of Mars traumatize you? lol
The warships arrived before the invitation. And invited or not, Mars would have be be concerned about their neighbour suddenly having that many ships parked on their lawn. Remember the Cuban Missile Crisis?
That assumes that the starships are noticeable from Mars, since the reach have the technology to avoid Lantern scans I'd say their stealth technology is very advanced.
And no I don't remember the Cuban Missile Crisis, I was born in the seventies.
And if America was populated by beings that are in the Kryptonian range on the scale of things you run away from in a fight, I suspect the reaction would have been far more relaxed.