Overview
- At Prime Minister’s Questions on Wednesday, September 9, Andy Burnham said national security “cannot come at the expense of social security,” refused to give a timetable for reaching 3% of GDP on defence and rejected Conservative calls to fund the uplift by cutting benefits.
- The Conservatives published a costed plan to hit 3% by 2030 that relies largely on welfare reforms, including about £4 billion from resetting local housing allowance and restoring the two‑child benefit cap.
- Downing Street and the chancellor say the government will honour NATO commitments to reach 3.5% by 2035 and will set a detailed defence spending path at the next spending review rather than in the October 28 Budget.
- Officials and analysts say rising gilt yields and higher borrowing have tightened Treasury headroom, creating a roughly £14–15 billion funding gap that could force either spending cuts, benefit changes, or new taxes in future budgets.
- The row has immediate political stakes: ministers warn welfare cuts would cause homelessness by forcing tenants to move to cheaper areas, Labour backbenchers are pushing to protect disability and vulnerable benefits, and Conservatives are framing Labour as prioritising welfare over national security.