UK appoints new Military Representative to NATO and EU

Lieutenant General Eldon Millar CVO MBE has been appointed as the United Kingdom’s next Military Representative to NATO and the European Union.

He will take up the role on 20 January 2026, replacing Lieutenant General Sir Ian Cave KCB, who is retiring after nearly 40 years of service in the British Army.

The appointment was confirmed by the Chief of the Defence Staff, Air Chief Marshal Sir Richard Knighton, who highlighted Lieutenant General Millar’s recent senior NATO roles. Millar most recently served as Deputy Commander of NATO’s Rapid Deployable Corps – Italy and the NATO Allied Reaction Force, where he was involved in NATO force readiness and operational command structures.

Lieutenant General Millar began his military career in the Royal Engineers, specialising in Explosive Ordnance Disposal. His service includes operational deployments with NATO in the Balkans and the Middle East, as well as joint and staff roles within the Ministry of Defence.

Announcing the appointment, Air Chief Marshal Sir Richard Knighton said: “I am delighted to congratulate Lieutenant General Eldon Millar on his appointment. As Deputy Commander of NATO’s Rapid Deployable Corps – Italy and the Allied Reaction Force, his unwavering leadership has been central to NATO’s very high readiness capabilities.”

He added: “As Military Representative to NATO and the European Union, he will play a critical role in maintaining security in the Euro-Atlantic.” Sir Richard also paid tribute to Lieutenant General Sir Ian Cave, thanking him for his service during what he described as a defining period for the Alliance.

Commenting on his appointment, Lieutenant General Millar said: “It is my privilege to represent the UK at the epicentre of Euro-Atlantic security.” He added that NATO was “working relentlessly to guard the security of our one billion citizens and to support Ukraine in the face of Russia’s illegal invasion.” He continued: “I am ready to build on the United Kingdom’s longstanding commitment to the Alliance. I look forward to working closely with our Allies to strengthen our Alliance and support Ukraine’s fight for freedom.”

Outgoing Military Representative Lieutenant General Sir Ian Cave said: “At such a critical juncture for the Alliance and global security, it has been an honour to represent the UK as the Military Representative to NATO.” He added that the appointment of Lieutenant General Millar “signifies the measure of the UK’s NATO First approach.”

UK Permanent Representative to NATO, Ambassador Angus Lapsley, also welcomed the appointment, saying: “Lieutenant General Millar’s appointment as Military Representative is great news for UK leadership in NATO.” He added that he looked forward to welcoming him to the UK’s joint delegation in Brussels.