South Korea's Lee visits Tokyo to boost ties with Japan before US summit

South Korean President Lee Jae Myung is in Tokyo to hold his first full summit with Japanese Prime Minister Shigeru Ishiba in a visit largely aimed at showcasing friendly ties between the two Asian neighbours that now face common challenges from America, their mutual ally.

Lee's visit Saturday comes in an unusual order putting Japan ahead of the United States helping him to better prepare for his crucial first summit in Washington with US President Donald Trump, mainly on trade and defence issues.

His Tokyo visit before Washington is well received by Japanese officials who see it as a sign Lee is placing great importance to relations between the two neighbours whose ties have been repeatedly disrupted by historical disputes, hampering their trilateral coordination with Washington.

For Ishiba, who faces pressure from rightwing rivals within his governing party to resign over its July election loss, Lee's visit and a successful summit could shore up his support.

Rintaro Nishimura, an associate with The Asia Group's Japan branch, said the timing of Lee's visit shows his way of pragmatic diplomacy with a focus both on bilateral and trilateral relations with the US Obviously tariffs play a big part, but I also think it was a gesture from Lee to show that Japan is very important in his mind as a partner in his foreign policy, he said.

For the two leaders, who last met only on the sidelines of the Group of Seven summit in June, Saturday's talks are largely symbolic and aimed at highlighting their friendship and focusing on exchanges as this year also marks the 60th anniversary of normalizing their diplomatic ties, he said.

Possible outcomes of the meeting include fast-track entry visas for South Korean travellers and working holiday programs.

The two leaders are also expected to discuss mutual concerns including North Korea's nuclear and missile development and China's growing assertiveness in the region.

Ishiba, who met Trump in Washington in February and held talks with him at the June G7 summit, has settled a tariffs deal ahead of South Korea, enabling him to coordinate with Lee ahead of his summit in the US.

The summit comes just days after the two leaders signalled their conciliatory approach to each other.

In his Aug 15 address marking the liberation from Japan's 1910-1945 colonization of the Korean Peninsula, Lee called for the two sides to overcome grievances rooted in Japan's brutal rule and develop future-oriented ties, though he urged Tokyo to face the issues that remain unresolved and strive to maintain trust.

In his interview with Japan's conservative Yomiuri newspaper published Thursday, Lee also said he will stick to past agreements with the Japanese government on the forced labour issues and sexual abuses of the so-called comfort women, though hard feelings remain among many Koreans.

Ishiba, who has acknowledged Japan's wartime aggression and has shown empathy toward Asian victims, expressed remorse over the war which he called a mistake, restoring the word in a Japanese leader's Aug 15 surrender anniversary address for the first time since its 2013 removal by former Prime Minister Shinzo Abe.