after haiti became independent, pretty much everyone refused to engage in fair trade-relations with them because if you rewarded them for attaining independence by actually recognizing them as a legitimate country, all the other colonies might start getting ideas.  on top of this france demanded an indemnity in return for recognizing haiti as an independent country. haiti had to take out loans in order to pay this and the debt for those loans was not fully paid off up until 1947. haiti's economy may have been deprived of as much as 115 billion dollars in total because they literally had to pay for their own recognition as a sovereign state.
Germany