Most of the sovereign bank debt likely to be exchanged, however, is held by larger German, French and Swiss banks with the capability (if not necessarily the desire) to take the write-offs required. The overhang of such future losses affects the entire European banking system at a time when it too is being restructured. The ECB, and the European central banks need to identify those banks that are impaired by excessive sovereign holdings and assist them in recapitalization – the sooner the better – but they should also push the larger, stronger banks to accept the exchange offers in the interest of bank transparency and restructuring as.