https://peertube.dngr.us/videos/watch/008802c9-56db-4f04-bfc7-758fea700da9 Join this channel to get access to perks: https://www.youtube.com/channel/UCddem5RlB3bQe99wyY49g0g/join Want to learn more about Periscope Film and get access to exclusive swag? Join us on Patreon. Visit https://www.patreon.com/PeriscopeFilm Visit our website www.PeriscopeFilm.com View our Amazon store here: https://amzn.to/3XQHsVD “Challenge from Below” is a Cold War Era film detailing tactics which might have been used to control sea lanes in non-nuclear conventional war between the U.S. / NATO and the Communist bloc aka Soviet Union. The film presents a stalemate scenario during which each side works to prevent the breakout of nuclear warfare. The battle includes a communist submarine force battling to keep the US forces from sustaining a supply line and going on the offensive. It was created prior to the Russo Sino split and therefore presents the worst case scenario of Russia and China working together to gain control over Europe and Asia. It opens with the battleground; the rolling sea (:12). A torpedo sings for a submarine under the water (:34). US Navy destroyers fire rockets (:45). Aerial support strafe the waters (:53). Howitzer guns fire on land (1:02). Ground support lies belly flat (1:12) squeezing off machine gun rounds. A Boeing B-52 (1:40) with a strategic nuclear payload flies over. The narrator attempts to explain Communist motives and goals (1:47) first over Asia (1:55) and later over Europe (2:13). M47 tanks are lowered at the shipyard (2:46). The continuation of supply lines was vital for Allied forces. Crates of materials are carted in (2:53). A view follows from the surface of a German submarine on combat patrol rising from Atlantic waters (3:12). Anti-submarine guns swing into position (3:16). A torpedo fired from an underwater submarine (3:26). An explosion from the torpedo blows water high (3:34). Aerial shots capture the scene from above (4:15). Shipping losses totaled from the first six weeks of warfare are detailed (4:29). The second six weeks show a decreased rate of loss (4:51) and increase in destroyed enemy submarines. A navy blimp (5:04) drops bombs targeting enemy subs (5:09). The Douglas F4D Skyray (5:27) shoots from the carrier deck. The A-3 Sky Warrior (5:36) follows. Navy escort ships (5:45) protect merchant convoys. A hunter-killer group appears on the horizon hunting German wolf packs (5:51). US submarines swim under water (5:57). Interrogations follow at a POW camp (6:09) including a submarine commander (6:20) of a sunken enemy sub. The commander’s story begins with a toast (6:41). The Soviet port of Petropavlovsk (6:51) is located on a map. US submarines rim the harbor entry way (7:07). Mines are released underwater (7:29). A Soviet sub moves through the harbor entrance (7:46). The submarine is hit (7:59). Counter attacking escorts tear through water (8:05). A submarine nest buzzes west of Hawaii (8:32). A convoy transits the area (8:39). The fleet is comprised of two destroyers and two destroyer escorts (8:49). A US Navy patrol plane; the P2V (8:59) moves ahead of the convoy. A destroyer is hit (9:09). An escort moves off (9:28) to drive off the enemy submarine. A sonobuoy pattern (9:55) and homing weapon are dropped (10:14). A Martin P5M Marlin on anti-submarine warfare patrol (11:50) swings over an American guppy class submarine (11:55). An enemy submarine is captured snorkeling (12:21).  A nearby US submarine (12:35) picks up the call. A homing torpedo is fired (12:46). The enemy submarine erupts (13:03). A hunter killer group is on patrol (13:48). A patrol plane bends off to make a contact report (14:14). Another sonobuoy pattern (14:27) and homing torpedo (14:42) drops. A Navy helicopter (14:48) lifts from the carrier deck. A pair hovers and drops sonobuoys (14:57). Search attack units (15:07) push forward. A helicopter is reported to have received contact (15:15). A torpedo is fired out (15:39). Sonar operators listen to the submarine breaking up (15:59). The End; Sea Power for Security logo (17:06).  Motion picture films don't last forever; many have already been lost or destroyed. For almost two decades, we've worked to collect, scan and preserve the world as it was captured on 35mm, 16mm and 8mm movies -- including home movies, industrial films, and other non-fiction. If you have endangered films you'd like to have scanned, or wish to donate celluloid to Periscope Film so that we can share them with the world, we'd love to hear from you. Contact us via the weblink below. This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD and 2k. For more information visit http://www.PeriscopeFilm.com Source: https://www.youtube.com/watch?v=JnXELCXB7bQ Mirrored from Periscope Film (https://www.youtube.com/@PeriscopeFilm) Fri, 12 Jun 2026 03:37:53 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://peertube.dngr.us https://peertube.dngr.us/lazy-static/avatars/41a6fee9-7f57-42d0-a5fc-5db4f1af2e31.png https://peertube.dngr.us/videos/watch/008802c9-56db-4f04-bfc7-758fea700da9 All rights reserved, unless otherwise specified in the terms specified at https://peertube.dngr.us/about and potential licenses granted by each content's rightholder.