Graduating Saudi air force officers taking an oath with the Koran in their hands during a graduation ceremony at King Faisal military college in Riyadh in 2008. Reuters, Ali Jarekji Saudi Arabia has one of the best-funded defence forces in the Middle East.

The kingdom spends 25% of its budget, or about $80 billion, on its military. That is about double what it spends on health and social development.

It has been throwing its weight around recently, engaging in a war in Yemen and joining forces with Turkey against Syrian President Bashar Assad.

So here's what all that money has bought it.