Ahhhhhhhhhhhh. I remember my first can like it was yesterday.
Didn't have no fancy ring pull either. Just a big ass can opener.
Well we tried and tried with the can opener ( Spesnatz can do it eh ) We ran out of bandages before we even scared the can. We could see the boxes inside but couldn't get to em

Ended up using air powered steel nippers to free the boxes. Start to finish took about 3 hours, some glad we weren't under attack

FWIW..................The can openers are just there to f%$K with your head ( Soviet psy-ops)