Wondering if there was a documented instance where the outcome of a war was decided or the tide was turned due to a natural disaster.
Here is a previous answer related to the Typhoons that occured when the Mongols invaded Japan.
https://old.reddit.com/r/AskHistorians/comments/94awfl/almost_every_source_i_use_to_look_up_on_the/
From a previous question about floods, I wrote about the attack on Fan in 219 by Shu-Han general Guan Yu in his last camapign, u/napoleonbolivar wrote about the Storm that saved Washington and u/Searocksandtrees collected a list of answers seven years ago. I hope these help
I'm sure there are plenty of others, or a new perspective on one of these, so if other people have examples then please do share, new answers always welcome.