OO,
That looks like a machete design from either South America or SE Asia, good for chopping through jungle growth. That one might be re-forged spring steel, I have a blade that looks very similar.
Had to get out my KBar to check the tang setup, it is peened in, probably for manufacturing expediency. 😀 Not real sure how you might make one fail, except by twisting the wrong way, which ain't real good in close combat👹

. I would be very upset if it broke dressing out a deer or elk!
It was a gift. ( Issue KBars ain't KBars, anymore😱😤😩.)
Hawkdancer