The Taoiseach's due to touch down in Japan today as part of an official visit to the Asia-Pacific region.
Michael Martin will also travel to Singapore during the four day tour.
Micheal Martin's visit to Japan's the first by a Taoiseach since 2013, and is aimed at strengthening Irish-Japanese relations.
He's due to meet with political representatives, the business community and members of the Irish diaspora.
Mr Martin will also meet with Japanese Prime Minister Fumio Kishida tomorrow, where he'll express condolences on the killing of former Prime Minister Shinzo Abe.
He'll also discuss Russia's invasion of Ukraine, restoring supply chains and maintaining economic growth.
On Thursday the Taoiseach will fly to Singapore where he'll meet Prime Minister Lee Hsien Loong.
The visit will be the first by a Taoiseach there since 2004.
Before travelling home late on Friday, he'll meet with Irish companies operating in the country, engage with the Irish community and visit Changi Chapel and Museum.
