Germany has been one of the most vocal critics of Japanese policy in raising yen depreciation issues.

Japanese finance minister Aso met with German finance minister Schaeuble on the sidelines at the G20 meeting:

Aso briefed Schaeuble on Japan’s recent economic policies centering on drastic monetary easing to beat chronic deflation, the source said.
Schaeuble asked Aso to clarify the purpose of the policies …

Aso has a bit of a reputation for being unsubtle. I hope he restrained himself …

Methinks we might get some calm over yen depreciation in coming days and maybe weeks, but there’s more fighting to come.

More here (but not much more).