Actually, isn't it true that Germany is the strongest nation, with the smallest amount of sovereign debt...and is being expected to carry the whole damn eurozone (along with France)? You can say Germans and Merkel are willing to act for the common good, but they've also balked at those not using the same German thrifty principles--pretty much everyone outside Germany--while acknowledging they're carrying the loads of those other nations.
The looming problem in the eurozone looks like rising nationalism, the break-up or fracture of unity, and the demise of the euro as a shared currency. I don't say that as a 'euro skeptic', but based on what's happening in real time.