Japanese prime minister Shinzo Abe says he does not have specific plans to visit Hawaii's Pearl Harbour to reciprocate for President Barack Obama's upcoming visit to Hiroshima.
Mr Abe said he marked last year's 70th anniversary of the end of the Second World War by visiting the United States.
Mr Abe said that trip included a speech to a joint meeting of Congress and a visit to the Second World War Memorial in Washington, where he laid a wreath.
Mr Obama plans a historic visit on Friday to Hiroshima.
He will become the first sitting American president to visit the place where the US ushered in the nuclear age by dropping an atomic bomb in the closing days of the Second World War.
Some 140,000 people were killed.
The White House said Mr Obama will not apologise for the decision to drop the bomb, but will reflect on the cost of war and his vision for a nuclear weapon-free world.