The German government accepts the holocaust happened and is very apologetic for it.
I cannot say the same for Shinzo Abe and his views on war crimes. I think a visit by himself to China with a full and formal apology, something like the famous Willy Brandt apology. Probably to South Korea and other nations to. He has been rather unwise to say some of the things he has. He appears to be a rather dangerous nationalist who could make things far worse, his words could make alliance building more difficult. Someone such as this is far from ideal in being a leader. A more moderate and thoughtful leader may not have dug this hole for himself!