Khukuri.
Carried inside, or strapped to the outside of a small backpack... its a survival tool. Very versatile tool indeed. Ask any Gurkha.
I favor the Condor Khukuri... I own two, the Heavy duty and the Tactical model. High carbon steel, 10" blade sharpens up nicely, proper design (unlike the cheaper machete versions!), perfect balance. FAR more chopping power than my Cold Steel Trailmaster Bowie or various small hatchets and Bowie knives I own.
You can build shelter, clear brush, process firewood, gather plant based food or kill small game. With a ferro rod you can build a fire. Remember, with a big knife you can do small jobs, but the reverse is not true. The learning curve is small.
It's use as an agrarian tool goes back thousands of years. And as a self defense weapon used during various battles over the last 200 years by the Gurkha warriors from Nepal... its legendary. Truly fearsome.
The blade angle and design magnifies your chopping stroke power. Splitting camp firewood with one will reaffirm this.
Carried along with a small hiking ("Get Home Bag"), backpack, along with canteen, compass, fishing kit, etc., in your vehicles trunk, where legal, you are prepared in case you breakdown or if you decide to hike before or after work. Or, carried in your trunk with other gardening tools, as its wonderful for clearing thick brush and weeds in the backyard at your camp. It is a fine tool to own with an amazing history.
In areas where one cannot legally carry or own a firearm (like some city's or National Parks in America, or disarmed nations across the globe), a well constructed Khukuri deserves consideration.
Regardless of if you can own a gun or not, a properly constructed and designed khukuri is one awesome tool to own and well worth adding to one's survival / camping gear.