Mr Light wrote:
So they know he's a convicted murderer but they put him in charge of the superhuman military anyway? Here I was thinking his name was miraculously cleared through accusations of mind control or something
Osborn was well placed to lead the fight back in New York given that he'd based the entire Thunderbolts operation on Oscorp technology, leaving them fully operational despite the virus attack on Stark's technology.
Osborn's team have nanotechnology implanted in their bodies to keep them under control. Given that the team is made up of Venom (Mac Gargan), Bullseye, Songbird, Penance, Radioactive Man, Swordsman and Moonstone, Osborn is the least of their problems.
If their entire motivation was their God you'd think that they would actually mention his murder in the main series, that's weird. Fury et al could have taunted them with this information, leading Veranke to attack them in a rage, something like that.
Also, was this the entire Skrull Empire or just a terrorist faction? I know that they were pretty much wiped out in the recent Annihilation crossover.
This was largely explained in New Avengers while Secret Invasion was going on.
After the Illuminati escaped from their captivity, Princess Veranke (who eventually took Spider-Woman's place) warned their King (Dorrek VII) of the prophecies stating that their Empire would soon be destroyed and they would only be able to seek refuge on a "world of blue". She believed that Earth had been promised to them.
Veranke is banished for this, but true to the prophecy, Galactus destroys the Skrull homeworld.
The survivors turned to Veranke, knowing she was right all along, and made her their Queen. (In fact, the Young Avenger Teddy "Hulkling" Altman - whose real name is Dorek VIII - was the real heir to the throne)
She began a plan to take the world promised to them by God by force, secretly infiltrating Earth's military and superhuman organisations as we see in Secret Invasion. Two things happen after the events of the House of M that strengthen her resolve.
First, news that the Annihilation Wave has destroyed much of the Empire arrives. Billions are dead, but what they believe to be a gift from God also happens - the complete devastation Earth's mutant population caused by the Scarlet Witch. This was the major obstacle to their planned invasion. Millions of mutants with superpowers would make it impossible for their invasion to be a success, and now they've been reduced to just 198.