Vilcabamba, by Harry Turtledove, link goes to the free to read short story. Similar scenario to The War of the Worlds, excluding the deus ex machina ending.
If you want something more sophisticated on the subject, try William Tenn's "The Liberation of Earth".
This is the monthly thread for posting media of various types that you've found that you enjoy. I find that exposure to LW ideas makes me less likely to enjoy some entertainment media that is otherwise quite popular, and finding media recommended by LWers is a good way to mitigate this. Post what you're reading, listening to, watching, and your opinion of it. Post recommendations to blogs. Post whatever media you feel like discussing! To see previous recommendations, check out the older threads.
Rules: