The nation's recently chosen prime minister, Sanae Takaichi, is preparing to face her first major diplomatic examination as she engages with former US President Trump for crucial talks in the Japanese capital.
Attention of their summit is expected to revolve around economic and security matters, marking a key moment for Japan's ties with its influential partner.
Takaichi, who just became Japan's initial woman prime minister after securing the leadership of the governing Liberal Democratic Party, had her global introduction at the recent ASEAN summit.
However, her forthcoming meeting with Trump is considered the true test that will set the tone for coming bilateral relations.
The prime minister deals with a possibly unstable political situation, having formed a coalition that puts her two seats away of a controlling number in the powerful lower house of the Diet.
This means, her government will rely on other lawmakers to pass legislation, introducing a element of complexity to her leadership.
Takaichi holds the former president's suspicion of China's military presence in the region, but each countries have experienced challenges from Trump's "America-first" economic policies.
Lately, the former president oversaw a truce agreement between Thai and Cambodian forces on the initial leg of his Asia tour.
Takaichi has stated her determination to speed up Japan's defense build-up, aiming to increase defense spending to 2% of GDP by the close of the fiscal year.
This move matches a longstanding demand from the former US leader and signifies the largest defense buildup for the nation since the WWII.
Japan has also moved to obtain "counterstrike" capabilities, including Tomahawk missiles from the US, and intends to deploy locally made extended-range systems.
But, the bilateral defense treaty remains a source of strain, with the former president earlier suggesting that Japan should pay more for stationing American troops on its territory.
Not many anticipate significant concessions on economic matters this week, particularly after latest duty adjustments offered some ease to the country's export sector.
The PM is expected to pursue further relief by committing to increased acquisitions of US products, including vehicles, soybeans, and gas.
The importance the former president places on personal chemistry could work in Takaichi's advantage, given her strong ties with the late ex-leader Abe, who was one of his favorite world leaders.
He was the initial international figure to meet Trump after his election, and the two built a close bond over mutual activities such as the sport.
The former president's visit to Japan will start with a meeting with Emperor Naruhito at the Imperial Palace in Tokyo.
This will be succeeded by discussions with Takaichi at the state guest house, the same venue where Trump held talks with the former leader in previous years.
Subsequently, Trump will proceed to South Korea for the APEC meeting, where he is set to meet China's president Xi.
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Brian Hernandez
Brian Hernandez
Brian Hernandez