Group 1 - Britain's defence spending plans are under pressure due to rising global threats and insufficient funding to address them [1] - Under a NATO agreement, the UK is required to increase defence spending from 2.4% of GDP to 5% by 2035, with 3.5% allocated to core defence and 1.5% to security spending [2] - The Ministry of Defence has indicated a £28 billion funding gap for military modernization, highlighting the need for more than just creative accounting to meet spending targets [4] Group 2 - Investment director Alistair Irvine emphasizes the urgency of reaching the 5% target by 2030 to avoid accusations of free-riding on allies [6] - The Office for Budget Responsibility (OBR) estimates that meeting the core defence spending commitment will require an additional £32 billion annually by 2035, comparable to significant tax increases [7] - Irvine suggests the potential use of war bonds as a financing method, referencing Britain's historical practice of issuing debt to fund wars [8][9]