There are no permanent enemies and allies in the world. It all depends upon time and context.
Apologizing for a wartime act generations ago would be as welcome to Japanese political leaders as a cloud of mosquitoes. Here’s why:
Does Japan even want an apology?
Likely not. A secret 2009 state department cable published by Wikileaks in 2011 indicated Japan was cool to the idea and worried that it would only serve to energize anti-nuclear activists in the country.
Hasn’t this come up before?
It has. In 2007, during Shinzo Abe’s first term as prime minister, Defense Minister Fumio Kyuma referred to the bombing of Hiroshima and Nagasaki as “something that couldn’t be helped.” While opposition leaders took issue with that position, the government’s official stance was that it would be more meaningful for the U.S. and Japan to “aim for a peaceful and safe world without nuclear weapons.”
An apology could trigger unneeded political fallout
Devin Stewart, a noted expert on Japan, and senior program director at the Carnegie Council for Ethics in International Affairs, suggests that an apology could “open a can of worms on many, many issues.”
There’s concern, for instance, it might undermine Abe’s initiative to give Japan a more nimble, capable military and clear the way for troops to fight overseas, something that hasn’t happened since the end of World War II. Abe’s primary goal, Stewart says, is to strengthen the military and everything else, including his economic platform of Abenomics, is a means to achieve that goal.
An apology also could harden the opposition to using nuclear power in Japan, a sentiment that blossomed after the meltdown at Fukushima. The administration has made nuclear power a major part of its energy policy.
“Overemphasizing the inhuman nature of the nuclear weapons used on Hiroshima and Nagasaki goes against what the current government of Japan has been working on so hard for decades — removing ‘allergic’ reaction against nuclear weapons and nuclear power. In short, let the sleeping dogs lie,” Koichi Nakano, a professor of Japanese politics at Sophia University, said.