This resource describes the historical development of barbed wire and razor wire and their applications to military engineering / site security as tactical obstacles.
The resource is well illustrated, with online links to relevant external sources.
Given the media intensity given to the Covid 19 (otherwise known as Corona or Wuhan) virus, there seems no reason to have posts on that very specific subject in several forums Accordingly, all of those posts will be moved to "Headlines". All new items on that subject should be posted there as well. This notice will expire on 30 June or be extended if needed.
Barbed/Razor Wire Obstacles 2015-12-17
The history and application of barded wire/razor wire obstaqcles