"The defence budget of America alone, at $693 billion, accounts for more than 60% of the total. But when defence spending is compared to the overall size of each country's economy, Saudi Arabia tops the list. It spends over 10% of GDP on defence, more than double the proportion spent by America. China ranks second in the world's biggest defence budgets (spending some $76 billion) and also boasts the largest armed forces. Only America, India, Russia and North Korea (not shown) have more than 1m military personnel." (thanks Nadine)
