Money is nothing more than a way of keeping score - it has no more intrinsic value than notches on a stick or binary on/off states in a computer memory bank. The productivity of a people is where true wealth lies.
Money keeps track of that productivity and allows the facile transfer of that productivity. The central banks that print currency and lend it at interest are the prime culprits.
This money that was created from nothing is lent out. But at a later time, the central bankers end up owning the entire productivity of nations. There can be little doubt that foreign debt is the way the international bankers drain the wealth from nations or that the IMF is the greatest legalized racket on the planet.