Britain's Prime Minister Andy Burnham and Nato secretary general Mark Rutte leave after a visit to see defence technology at RAL Space National Space Laboratory, in Didcot, Oxfordshire, south west of London, on September 16, 2026. (Photo by Stefan Rousseau / POOL / AFP via Getty Images)

Britain's Prime Minister Andy Burnham and Nato secretary general Mark Rutte look at a robotic dog during a visit to see defence technology at RAL Space National Space Laboratory, in Didcot, Oxfordshire, south west of London, on September 16, 2026. (Photo by Stefan Rousseau / POOL / AFP via Getty Images)

Britain's Prime Minister Andy Burnham and Nato secretary general Mark Rutte look at equipment during a visit to see defence technology at RAL Space National Space Laboratory, in Didcot, Oxfordshire, south west of London, on September 16, 2026. (Photo by Stefan Rousseau / POOL / AFP via Getty Images)

Britain's Prime Minister Andy Burnham and Nato secretary general Mark Rutte look at a robotic dog during a visit to see defence technology at RAL Space National Space Laboratory, in Didcot, Oxfordshire, south west of London, on September 16, 2026. (Photo by Stefan Rousseau / POOL / AFP via Getty Images)

Britain's Prime Minister Andy Burnham and Nato secretary general Mark Rutte look at equipment during a visit to see defence technology at RAL Space National Space Laboratory, in Didcot, Oxfordshire, south west of London, on September 16, 2026. (Photo by Stefan Rousseau / POOL / AFP via Getty Images)

Britain's Prime Minister Andy Burnham and Nato secretary general Mark Rutte meet staff during a visit to see defence technology at RAL Space National Space Laboratory, in Didcot, Oxfordshire, south west of London, on September 16, 2026. (Photo by Stefan Rousseau / POOL / AFP via Getty Images)

DIDCOT, ENGLAND - SEPTEMBER 16: Prime Minister Andy Burnham (right) and Nato secretary general Mark Rutte during a visit to see cutting-edge defence technology at RAL Space, the UK's National Space Laboratory, at the Harwell Science and Innovation Campus on September 16, 2026 in Didcot, England. (Photo by WPA Pool/Getty Images)

DIDCOT, ENGLAND - SEPTEMBER 16: Prime Minister Andy Burnham (right) after a visit with Nato secretary general Mark Rutte to see cutting-edge defence technology at RAL Space, the UK's National Space Laboratory, at the Harwell Science and Innovation Campus on September 16, 2026 in Didcot, England. (Photo by WPA Pool/Getty Images)