This article (via Daily Pundit) says:

Barechested commandos brandishing knives take turns to charge towards a live dog, tied and spreadeagled between vertical poles. They slash and stab the helpless, yelping animal until it dies. Then, in a grotesque act of military machismo, the soldiers eat the dog's heart and drink its blood.

Learning to kill: a live dog is tied to two poles ready for slaughter
The troops belong to the Peruvian army and the slaughter of the dog is the climax of a series of "bravery tests" to train them to be ruthless killers.

As the rest of the article points out, these are training methods if you want to train a bunch of sociopaths to kill women and children. I wonder what the crime rate is for those who've gone through this program.

Isn't attacking a defenseless dog who's tied between poles just about the opposite of bravery? A real test of bravery might involve, say, taking on an unfettered mountain lion or bear or whatever the local equivalent is.

Here's a real test of bravery.