Actually, I have been in an alliance almost the whole of my stay in CN, which amounts to about 260 days.
I recently left my alliance(MCXA) with the intent of joining some of my friends a few hours ago.
Not 1 hour after I left MCXA, I was attacked with this.
My friends wouldn't amount to anywhere near his alliance, not that I would ask them to fight even if they were.
Also, I didn't think that I was recruiting.