Diesel-electric subs are an underappreciated type. Nuclear is fine for indefinite remote launch stations, but anything tactical and espionage related, you gonna

Diesel-electric subs are an underappreciated type. Nuclear is fine for indefinite remote launch stations, but anything tactical and espionage related, you gonna want a sub that's much quieter and can be turned of completely. Hard to find I English sources, but have a look at Dutch diesel-electric subs if you're interested. Played a neat role during the cold war, a role nuclear subs couldn't fulfill.