El 80% de las armas del caso Mencho provienen de EE.UU.

Approximately 80% of the weapons seized in the operation against the MENCHO came from the United States.

Let's see it.

It has already been mentioned here, speaking of the general strategy, 23,000 weapons have been secured in the administration. Of those 23,000 weapons, 80% are of North American origin. Of those 23,000 weapons, 80% are of North American origin. So in this case, it's more or less the same proportion.