If this continued for a few years, a euro breakup would become possible without a meltdown, but it would leave the creditor countries with large claims against debtor countries, which would be difficult to collect. In addition to intergovernmental transfers and guarantees, the Bundesbank’s claims against peripheral countries’ central banks within the Target2 clearing system totaled €644 billion ($804 billion) on April 30, and the amount is growing exponentially, owing to capital flight.