6. The United Kingdom
The once dominating British Empire is no longer in control of Europe and a lot of the rest of the globe! Yet, it still has a sizable defense force. The UK has a $61.5 billion budget, 138,500 male and female service members, and 225 military aircraft. They have 227 combat tanks in action, besides two aircraft carriers, 11 nuclear submarines and 30 warships that are present at sea. Notwithstanding, it’s actually intended to cut down the number of its military by at least 20% by 2018, the UK still help its position internationally.