Genuine question about war on US soil

Genuine question. I love history and learning about war the whole bit etc. but I’ve been thinking lately how come, not saying I want it to happen or anything, we haven’t had war on US soil? Like every country has had war on their own soil throughout history. How come at some point in history and even now, how have we not had war on our own soil? Idk if I’m just ignorant or something but I just wanna know what other people think.