eli5 – How would Greece declaring bankruptcy in 2010 caused the German and French banks to go under?

Question

I have been reading Adults in the Room, and something I don’t understand is how Greece declaring bankruptcy would have caused the Trillion Euro of periphery loans of the German and French national banks to suddenly go bad and result in the collapse of said banks/economies in the eurozone.

In: Economics

Answer 1

I thought it was cause the Germans keep bailing everyone out. Alot of Greeks don’t want to pay taxes or pay back the money that Germany has given them.