I typically don’t dream but occasionally I have ones that absolutely pertain to my life or those around me.
I can never recall having a more unsettling dream.
“Started with crazy storms. Massive amounts of tornadoes. At the worst part of the storm aliens revealed themselves. Destroyed city centers. After this they dropped some kind of bio weapon a kind of particle. The particles destroyed everything they touched including humans in a horrific way. Melted you into nothing but grey goo. Most of Earth was destroyed. All but several “fly over sates” in the core of America.
Second Alien race conscripted humanity. At war with the first alien race. They were happy to keep humanity safe as long as we fought for them. If you didn’t they put you in an arena where other humans hunted you for sport.
Survivors found they were able to resist the alien particles ability to melt you if you concentrated on staying alive. At the end of the dream humans learned they ability to reverse the alien particle destruction by something inside.”
I have never had dreams based on your “topic” but have had repeated dreams of a bioped tigerman attacking, which i coorelated to my birth father calling me tiger and his anger. I am not a dream analyst but the subjects you mention, storms, aliens, war are discussed both here and other media forms and thus maybe causing your dream state mind to recall and create.