The Quasar Class Dreadnought sends out a message to all the alien forces on the battlefield, "You guys are quite persistent, and for what? To stop us from establishing a connection to the wider galaxy? Maybe we were wrong to come here."
(Pls don't respond to this until Hannizio does Zendikar, it wouldn't quite be fair to him for us to possibly stop fighting, then for him to face the 1st and 2nd fleets alone.)