out of interest, what happens when a country's government defaults on a loan repayment? we cant exactly seize Greece's house or car can we? or perhaps we just get to make those rules up as we go along
or we'll have stated this in the loan contract
Initially nothing, because there are no rules for that. German judges handle debts in Germany like that, that special German officials for gathering debts are send out and confiscate properties of the country in debt. The last country that was hit very hard by that was Thailand, which has a huge debt at a German company that constructed a highway in Thailand. A very pedantic bureaucrat simply went at the airport of Munich and tagged the personal airliner of a Thai Prince with seals.
This means of course, that the property of the country in debt has to be inside Germany, which is rarely the case.
Another mean are international warrants for such debts, that mean that ships for example with good of the country in debt may not leave port. That kind of activity is also used by Germany for international politics. They heard that China wanted to send weapons to an African country that has an insane dictator, runaway inflation and huge debts with Germany. So, instead of just sending angry words to China, they simply said "These are now our weapons, we want them to refinance the debts". Was really annoying for China, because instead of just arriving in South Africa and unloading the goods there, they had to go to another country in range, unload the weapons there and smuggle them like the criminals they are into the country. With lots of money flowing for appeasing corrupt bureaucrats in the other country.
Looks maybe like a loss for Germany, because the weapons still arrived, but now all countries know that the Damocles sword is over them, when they want to help this evil tyrant to kill his people. The arm of Germany is maybe weak, but long.
The next aspect there is the inability to get new loans for that country. This also affects the companies in that country, even an financially good company in that country will suffer strong penalties for the bad budget keeping of their leaders.
This could also have some implications: What if the USA would default, could a bank try to get its money back by confiscating a US warship? Or a drone FOB?