Ballast Control Panel (BCP) in the control room of US Navy nuclear submarine.
https://www.reddit.com/r/EngineeringPorn/comments/16fye97/ballast_control_panel_bcp_in_the_control_room_of/Chinese submarine appears to be using underground base in South China Sea - CNN
https://www.cnn.com/2020/08/21/asia/china-submarine-underground-base-satellite-photo-intl-hnk-scli/index.htmlChinese submarine sailors report significant mental health problems in rare study - CNN
https://www.cnn.com/2021/02/01/asia/china-submarines-mental-health-intl-hnk-scli-ml/index.htmlHow Submarine Sonarmen Tirelessly Hunt For Enemies They Can't Even See - The Drive
https://www.thedrive.com/the-war-zone/35603/veteran-submariner-on-how-sonar-crews-tirelessly-hunt-enemies-they-cant-even-seeJapanese Soryu submarine collides with commercial ship while surfacing in Pacific - CNN
https://www.cnn.com/2021/02/08/asia/japan-submarine-collision-intl-hnk-scli/Latest Israeli Submarine's Big Sail Seen In New Images | The War Zone
https://www.twz.com/new-israeli-submarines-big-sail-seen-in-imagesThe Future of the Submarine - Emerging Threats, Sensors & Transparent Oceans - YouTube
https://www.youtube.com/watch?v=S96oRLoE0Zkr/MachinePorn - Submarine [1080 x 1080].
https://www.reddit.com/r/MachinePorn/comments/afh6fe/submarine_1080_x_1080/