Diesel engines need air, submarines run underwater, so how do diesel submarines work?

If diesel engines need air for combustion, then how can submarines use them? Here's what you need to know about the clever engineering behind diesel subs.
The Diplomat

Former Defense Minister Nakatani Says Japan’s Next Submarine ‘Will Eventually Need Nuclear Propulsion’

If Tokyo acquires nuclear-powered subs, it would be a significant strategic shift for the only nation to have suffered atomic bombings. In this May 31, 2025 file photo, Japan’s then-Defense Minister ...
The Diplomat

Japan’s Nuclear Submarine Debate Gains Momentum Amid Rising Pacific Threats

The debate over nuclear-powered submarines is likely to serve as a critical indicator of Japan’s strategic trajectory.
AOL

North Korea reveals new images of its first ‘nuclear-powered’ submarine

North Korea on Thursday released new images of what it claims is its first nuclear-powered submarine, a massive vessel equal in size to some of the United States Navy’s attack subs. The pictures ...
WRAL

North Korea displays apparent progress in construction of nuclear-powered submarine

SEOUL, South Korea (AP) — North Korea on Thursday displayed apparent progress in the construction of a nuclear-powered submarine, with state media photos showing a largely completed hull, as leader ...
Washington Examiner

Kim Jong Un swipes at South Korea’s progress building a nuclear submarine while inspecting his own

North Korea on Thursday showcased what appeared to be significant progress on a nuclear-powered submarine, with state media releasing new images as leader Kim Jong Un criticized South Korea’s parallel ...
National Interest on MSN

China’s Silent Nuclear Warning to Russia: The New Type 096 Submarine

At its current production rates, China is likely to have a far more menacing submarine force than Russia in short order—though its quality is still uncertain.