When the Sea Martial Sect received the decree from the Sword Rain Daoist /the leader of the senate and eldest son of the mighty Yun Che, the Supreme protector had decided that going against the decree was not worth the trouble and hence decided to go and save the kingdom from its certain doom
He had deployed millions of cultivators, all of whom were in the God Realm or higher. This was a force powerful enough to shake the world.
They had teleported from the Sea Martial Sect and should have been on the battlefield against the wraiths much earlier but they had been trapped in the space channel.
The space around the kingdom had been sealed off by a powerful figure using some almighty art.
If it were anyone else other than the Supreme Protector leading the force from the sect, they would have all been torn to pieces by the power of space.