BERLIN  As Europe edges toward emergency guarantees to stem market panic over one of the most profligate members of the euro bloc, the country that the region turns to for leadership, Germany, is suffering from growing doubts about the European experiment it long championed.

Reluctant German leaders now find themselves forced to help Greece remain solvent, or risk watching markets attack one weak member after the next, from Portugal to Spain to Italy, threatening the stability of the euro, the European currency Germany fought so hard to create.

On Thursday, European leaders meeting in Belgium announced they had agreed to a political statement to try to reassure bond markets and head off the crisis, and said that finance ministers would work through the details next week.

Earlier, in a conference call with the finance ministers from the 16 countries that use the euro and the president of the European Central Bank, Jean-Claude Trichet, officials said that some action had to be taken to calm markets and take pressure off Greece. It appeared clear that Germany, with an assist from France, would have to take the lead. “The Germans are the only ones with deep pockets,” said Daniel Gros, director of the Center for European Policy Studies in Brussels. “If it was just Greece, they could consider letting them go down the drain, but it threatens the entire euro zone.”