A NATO Allied Reaction Force (ARF) team has completed a three-day visit to Denmark under an exercise called Deployex Steadfast Discovery, according to the Danish Armed Forces. The visit tested how NATO could rapidly reinforce Denmark's area of responsibility.

The ARF is a multi-domain, high-readiness force under the Supreme Allied Commander Europe, spanning land, maritime and air components, special operations forces, and cyber, space and logistics capabilities. It was activated on 1 July 2024 under the NATO Force Model.

The team was an Operational Liaison and Reconnaissance Team, drawn from ARF headquarters, which NATO Rapid Deployable Corps - Italy provides near Milan. In an actual ARF reinforcement, such a team would be the first element to deploy.

The visit's main focus was Denmark's role as Host Nation. According to Danish Defence, Host Nation Support includes “logistics, transportation and the procedures required to support the reception, onward movement and sustainment of Allied forces”.

According to Defence Command Denmark, “the team held strategic discussions with counterparts in the Danish Armed Forces” and visited a number of military installations and strategically important infrastructure.

The team's leader said the ARF "converges multinational components from every corner of NATO in high readiness, to support Denmark's collective defence from Arctic to Baltic."