How Many People Are in the UK Armed Forces?
Approximately 138,000 trade-trained regular personnel serve in the UK Armed Forces — around 73,000 in the Army, 31,500 in the RAF and 28,500 in the Royal Navy and Marines — plus around 32,000 volunteer reserves. Defence spending is approximately £60 billion per year.
About These Statistics
The UK Armed Forces had approximately 138,000 trade-trained regular personnel as of early 2026, according to the Ministry of Defence Quarterly Service Personnel Statistics. This total is split between the British Army (~73,000), the Royal Air Force (~31,500), and the Royal Navy and Royal Marines combined (~28,500). The Army has shrunk from a target of 82,000 set in 2010 to its current target of 73,000 — its smallest size in over 200 years.
The volunteer reserves add a further ~32,000 trained personnel across the Army Reserve (~24,000), the Maritime Reserve (~3,500) and the RAF Reserve (~4,500). Including reserves and regular reserves, the total deployable UK military workforce is around 170,000 — compared with approximately 215,000 in 2010. Recruitment and retention have been persistent challenges, with the Army missing recruitment targets in most recent years.
The UK Defence budget is approximately £60 billion per year (2024-25), equivalent to roughly 2.3% of GDP. The Government has committed to raising defence spending to 2.5% of GDP by 2027 and an aspiration of 3% by the mid-2030s, driven by the war in Ukraine, NATO commitments and a more contested global security environment. This would add approximately £15-20 billion per year to the defence budget.
UK Armed Forces personnel are deployed on operations across more than 30 countries, including NATO enhanced Forward Presence in Estonia, training missions in Ukraine (Operation Interflex has trained 50,000+ Ukrainian soldiers since 2022), continuous-at-sea nuclear deterrent patrols, and routine overseas garrisons in Cyprus, Gibraltar, the Falkland Islands and Brunei. The Continuous At-Sea Deterrent has been unbroken since April 1969.
Armed Forces personnel are paid via the Armed Forces Pay Review Body. A new entrant to the Army earns approximately £27,500, a Captain (OF-2) approximately £53,000, and a Major (OF-3) approximately £64,000. The Armed Forces Pension Scheme costs the UK approximately £5 billion per year. Around 15,000 personnel leave the Armed Forces annually, with veteran mental health and housing support remaining persistent policy concerns.
Frequently Asked Questions
Based on official UK government data
How many soldiers are in the British Army in 2026?
There are approximately 73,000 trade-trained regular British Army personnel in 2026, according to the MoD Quarterly Service Personnel Statistics. Including the Army Reserve adds a further ~24,000, bringing the total trained Army strength to around 97,000. The Army target has been progressively reduced from 102,000 in 2010 to its current 73,000.
How big are the UK Armed Forces overall?
The UK Armed Forces have approximately 138,000 trade-trained regular personnel: ~73,000 Army, ~31,500 RAF, and ~28,500 Royal Navy and Royal Marines combined. Adding the ~32,000 volunteer reserves brings total trained strength to around 170,000. This is approximately 35% smaller than in 2000.
How much does the UK spend on defence?
The UK defence budget is approximately £60 billion per year (2024-25), equivalent to roughly 2.3% of GDP — exceeding the NATO 2% target. The Government has committed to raising defence spending to 2.5% of GDP by 2027, which would add approximately £15-20 billion per year to the budget. The UK is the third-largest defence spender in NATO behind the United States and Germany.