Maintenance is the likely missing link. Get a brand one and don't do maintenance for a while and you'll get the same result.
A lot of countries have these subs and airplanes but not enough money for training, maintenance and so on.
A lot of countries have these subs and airplanes but not enough money for training, maintenance and so on.
At one time, Argentina had the most extensive navy in South America. That time was not in the last two decades. Much of their current capability could be best described as left-over.