A key moment of Japanese Prime Minister Sanae Takaichi's official visit to the US was President Donald Trump's comment on a piece of shared history - Pearl Harbor.
Asked by a Japanese journalist why the US had not warned its allies it was going to strike Iran on 28 February, Trump referenced the 1941 Japanese attack on US soil.
"Who knows better about surprise than Japan? Why didn't you tell me about Pearl Harbor?," Trump said as the prime minister appeared to be opening her eyes wide and taking a deep breath.
The Pearl Harbor attack led to the US joining World War Two, after which the countries became close allies.
Trump's remark appeared to draw some laughter from journalists and others present in the room in the White House, while Takaichi's reaction seemed to reflect some of the unease that surrounds the issue.
