Comments by "Dave Sisson" (@Dave_Sisson) on "Anti-Sub Warfare in WW1 - From Hammers to Hunter-Killers" video.

  1. It would be nice if you could cover the tradition of submarines flying the Jolly Rodger on their return to port after sinking a ship. When did this begin and was it restricted to the Royal Navy or did other navies do it too? What did the various markings on the flags mean? Thanks.
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