When I have to defend my house from nature, I use what I guess you could consider a small machete. It's from Ontario Knife Co., they call it the Night Stalker 9 which I don't like to tell people because while I do use it to chop down stalks, I do it during the day time. It's 9.5" of 1/4" thick 5160 with a big fat micarta handle, and I use it like a small hatchet. It served me well during the Great Posion Ivy War, finally drove out the Algerian Ivy invasion, AND it splits a mean pumpkin for roasting!
"Be the person your dog thinks you are."