A cloaking field was a device employed to make the user invisible. Several races had access to this technology.

In 1913, the Family of Blood used a cloaking field to hide their ship; it glowed green whenever someone came into contact with it (TV: Human Nature / The Family of Blood)

In 2009, Commander Kaagh of the Tenth Sontaran Battle Fleet used a cloaking field to hide himself and his ship. (TV: The Last Sontaran)

Anubian spacecraft could cloak. (TV: Curse of Anubis)

In 2050, the Korven supersoldier, Trojan, was equipped with a cloak, but was still detectable by K9 Mark 2's olfactory sensors. (TV: The Eclipse of the Korven)

For centuries, a Dalek fleet used a cloaking field to hide from view of the Game Station. (TV: Bad Wolf/ The Parting of the Ways)

Commander Skarr with the help of an another Sontaran used an invisibility cloak during the Siege of Trenzalore in order not to be detected by the Papal Mainframe. (TV: The Time of the Doctor)

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