Just picked an interesting point, which is in December this year the UK will pay the final installment of the Lend Lease debt incurred during and after WW2. The original debt was I believe around $31,000,000,000 dollars and the final $80,000,000 will be paid off at the end of the year.
No one from the UK Goverment has offically said what the final bill will be, as interest was added from the start, but the final figures, will we are told, be broken down at the end of the year. Should be interesting.
Its complicated as other debts were added to the lend lease bill which had differing rates of interest. The original lend lease was at 2%. The December Payment is the final payment for all the UK debts to the USA.
In case your wondering, the debts owed from WW1 are still outstanding and will never be paid. The world side financial collapse in 1932 halted all payments. The UK owed the USA around $834m but we were owed $2,000m by other countries namely France.