Is My Opponent from Earth?

Five hundred years ago, two people from Earth traveled sixteen light years and came to our world. They brought vast knowledge and great technology with them, just like gods. We knelt before them, humbly asked for advice and praised their merits. A hundred years ago, 20 million people on earth followed in the footsteps of the gods and came here. In accordance with the legendary admiration for people on earth, we once again want to welcome this group of angels who brought us civilization. However, the angels no longer had good intentions this time. They tore up the sky with their silver battleships and fired their cannons at us. We don't know why a merciful god would want to destroy us. But it doesn't matter anymore. We are grateful for everything you have brought, but we still have to resist in order to survive. We are going to make war against the gods, and we are going to make war against the people of the earth. (Not a cool article)