Nato Security Threat Review: Us Participation Lord Judd asked Her Majesty's Government:What steps they are taking to ensure that the new United States administration is invited to participate in a review by NATO of the security threats faced by its member countries and of what would be the appropriate prioritised response to such threats. [HL1021] Baroness Ramsay of Cartvale As a NATO member, the US routinely participates in all alliance discussions on security threats faced by its member countries and in formulating responses to those threats.