I don't know... If I had to guess, I'd say that Nigeria is Deep in Debt to the Central Bank Owners... Banks are known for printing Fiat Slave Units and Lending them to Countries with interest attached...

It looks like Nigeria wants to join a large Group of Countries who want to "break free" from the Central Bank Owners and their Currencies backed by nothing more than thin air... It's a World Wide Movement... The United States will Set the Example for all the other Countries...