The Kuwaiti dinar is currently the strongest currency in the world due to Kuwait's large oil reserves and exports, which account for most of its GDP and export revenues. In contrast, the Iranian rial is the weakest currency due to international sanctions in response to Iran's nuclear program that have restricted its oil exports and crippled its economy. To bridge the gap between strong and weak currencies, countries need to improve self-sufficiency by increasing exports, reducing imports and defense spending, utilizing resources fully, and implementing import taxes and export subsidies.