https://www.twz.com/orca-drone-submarine-delivered-to-navy
https://www.twz.com/25235/the-u-s-is-getting-back-into-naval-mine-warfare-with-new-sub-launched-and-air-dropped-types
https://www.twz.com/14733/the-us-navy-has-created-its-first-ever-underwater-drone-squadron
https://seapowermagazine.org/navy-is-pushing-advances-in-offensive-mine-warfare/
https://www.twz.com/26513/boeing-is-building-the-navy-big-orca-submarine-drones-to-hunt-and-lay-mines-and-more
https://www.twz.com/41309/navy-offers-glimpse-of-its-submarine-launched-mine-capabilities-in-the-mediterranean
https://www.twz.com/drones-that-swim-and-fly-to-be-launched-recovered-by-uncrewed-submarine
https://www.twz.com/7747/japan-goes-back-to-the-future-with-lithium-ion-battery-powered-submarines
https://www.americanmanufacturing.org/blog/chinas-shipbuilding-capacity-is-232-times-greater-than-that-of-the-united-states/
https://www.twz.com/alarming-navy-intel-slide-warns-of-chinas-200-times-greater-shipbuilding-capacity
https://www.globalsecurity.org/military/systems/ship/systems/shrouded-propulsor.htm
https://www.wdmmw.org/peoples-liberation-army-navy-china.php
https://www.wdmmw.org/united-states-navy.php
https://www.reuters.com/world/asia-pacific/inside-asias-arms-race-china-near-breakthroughs-with-nuclear-armed-submarines-2023-10-09/
https://www.ibtimes.com/us-says-china-has-deployed-long-range-icbms-nuclear-submarines-3638988#:~:text=The%20U.S.%20has%20for%20the%20first%20time%20acknowledged,U.S.%20continent%20from%20closer%20to%20its%20own%20shores.
https://www.csis.org/analysis/how-china-modernizing-its-nuclear-forces
https://www.naval-technology.com/projects/orca-xluuv/
https://www.workboat.com/news/shipbuilding/boeing-wins-43-million-contract-for-autonomous-submarines/
https://www.latimes.com/business/la-fi-boeing-undersea-drones-navy-contract-20190419-story.html
https://crsreports.congress.gov/product/pdf/R/R41129/179
https://nationalinterest.org/blog/buzz/us-navy%E2%80%99s-orca-drone-ship-game-changer-mine-warfare-against-china-213584