Wars of the Clouds
Wherever a storm rages, so does a war.
There are billions upon billions of water-sprites in our atmosphere; sapient, almost entirely unaware of our lives and we of theirs, and busy with their own affairs and conflicts. Some of their sages are aware that things have been seen in the cloud-world, over the last century; those sages have generally kept silent on the subject, because the things cannot be countered or even affected, so knowledge of the things would do more harm than good. Besides, there are other things to focus the attention of water-spirits, such as their constant state of war.