Русско-англо-русский юридический словарь

debt burden – the amount of debt that a particular country etc has, considered as a burden on its economy and people and a hindrance to their progress. A debt burden is a large amount of money that one country or organization owes to another and which they find very difficult to repay. (collinsdictionary.com)

Progress has been made on the overall debt burden of developing countries, with the proportion of external debt service to export revenue falling from 12% in 2000 to 3% in 2013. (The Guardian)