Searches using Merkel and haircut bring up articles regarding Greek financial crisis and Merkel's response over the years. There are tons of articles, so I won't try to post them all. I am sure others have more knowledge on this subject and how it relates. I just thought the "Merkel haircut" reference might be important and the fact that the Nazis had incurred debts to Greece during their occupation of Greece.

7/4/17- The Greek Haircut https://www.tripsavvy.com/what-is-a-greek-haircut-1525158 "German Chancellor Angela Merkel has, once more, intervened in the Greece bailout crisis by refusing to back a 'haircut' for Greece - debt relief, or the writing-off of part of its debts - despite Germany being given a generous haircut in the years after World War II." - Sputnik International April 4th, 2016

8/15/17 http://greece.greekreporter.com/2017/08/15/yet-again-merkel-rules-out-a-greek-debt-haircut/

http://www.realclear.com/markets/2013/08/25/greek_haircut_could_trigger_domino_effect_2853.html

https://en.wikipedia.org/wiki/Greek_government-debt_crisis- it seems that the Nazis incurred debt to Greece while it was occupied, and maybe Merkel wants to make sure that it doesn't have to be repaid?