Former NATO Secretary-General Lord Robertson is expected to deliver a speech criticizing the current government's approach to defence spending and security policy.

According to advance details of his remarks, Lord Robertson will argue that the government has failed to respond adequately to current security threats. He is expected to characterize the government's stance as insufficient given what he views as ongoing threats to national security.

The speech comes amid broader discussions about the size and funding of the UK's military capabilities. Defence spending has been a recurring point of political debate, with various officials and experts offering differing views on appropriate funding levels.

Lord Robertson previously served as NATO Secretary-General from 1999 to 2004 and has been a prominent voice on defence and security matters. His upcoming remarks represent the latest contribution to ongoing policy discussions about Britain's military preparedness and spending priorities.

The timing of his speech coincides with continued scrutiny of the UK's defence capabilities and budget allocations across various military services.