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  2. Cheval de frise - Wikipedia

    en.wikipedia.org/wiki/Cheval_de_frise

    A Confederate cheval de frise at the Fort Mahone defenses during the siege of Petersburg The "knife rest" or "Spanish rider" is a modern wire obstacle functionally similar to the cheval de frise, and sometimes called that.

  3. Wire obstacle - Wikipedia

    en.wikipedia.org/wiki/Wire_obstacle

    The "knife rest" or "Spanish rider" is a modern wire obstacle functionally similar to the cheval de frise, and sometimes called that. Triple concertina wire fence. A complex obstacle belt of low wire entanglement backed by a double apron fence.

  4. Robert Erskine (inventor) - Wikipedia

    en.wikipedia.org/wiki/Robert_Erskine_(inventor)

    Once the war broke out in earnest the Colonials were concerned that British warships would gain control of the Hudson River and separate New England from the rest of the colonies. Erskine designed a tetrahedron-shaped marine cheval-de-frise, a defensive barrier of pointed logs strung together abreast the river to prevent warships from sailing ...

  5. Ringwood Manor - Wikipedia

    en.wikipedia.org/wiki/Ringwood_Manor

    Scottish engineer Robert Erskine was hired in 1771 to manage the ironmaking operations at Ringwood. During the American Revolutionary War, after designing a cheval-de-frise for the Hudson River in 1776, he was appointed by General George Washington as his first Geographer and Surveyor General of the Continental Army.

  6. Concertina wire - Wikipedia

    en.wikipedia.org/wiki/Concertina_wire

    Triple concertina wire fence Baled concertina wire prior to deployment. Concertina wire or Dannert wire [1] is a type of barbed wire or razor wire that is formed in large coils which can be expanded like a concertina.

  7. Pollepel Island - Wikipedia

    en.wikipedia.org/wiki/Pollepel_Island

    Caissons from several chevaux de frise still rest at the river bottom. Still, these obstructions did not stop a British flotilla from burning Kingston in 1777. [ 6 ] General George Washington later signed a plan to use the island as a military prison ; however, there is no evidence that a prison was ever built there.

  8. Chevaux de frise - Wikipedia

    en.wikipedia.org/?title=Chevaux_de_frise&redirect=no

    Language links are at the top of the page across from the title.

  9. Chevaux-de-frise - Wikipedia

    en.wikipedia.org/?title=Chevaux-de-frise&redirect=no

    Pages for logged out editors learn more. Contributions; Talk; Chevaux-de-frise