A plan to set up a euro zone insurance for bank deposits is the key priority of the European Union to boost the bloc's economy, European Commission President, Jean-Claude Juncker, said on Tuesday, pushing for a deal that has been fiercely opposed by Germany.

A European-level guarantee for savers is seen by many as a necessary complement to existing national bank guarantee schemes, which in some countries may not be able to protect deposits up to 100,000 euros as EU rules require.

"What cou...