Enemy initiated the battle, but I only see “Tower Guard” and not the player/enemy.
Your ally hasn’t assign any member to guard that tower (bad mistake)
You should’ve assign a member to guard a tower, for all towers.
Lucky enemy who attack that empty tower, easy win.
Its not possible to not assign s.o to a tower.
I think this is because the player left the alli or is just inactive.
Yes, just like Aumbri said, that’s because tower guards left alliance. The affected alliance can assign new tower guards tough.