I used zombies because its as generic a situation as I could think of and theres little chance of a foreign invasion here
Since you said to be serious, why do you think a foreign attack in unlikely? How about a UN "stability force"?
Yes, I'm mostly ready.I am armed. I keep (I hate publicly saying this, but..) 5+ mags for my sidearm loaded and ready to bear. If it's zombies, they're theoretically slow, so easy to out manuever. If it's ChiCom UN forces, they're fast, but easily distracted with cats.