Japan’s Complex Relationship with America Under Trump

By the Editorial Team · Friday, July 10, 2026

Japan’s alliance with the United States faces renewed strains as the Trump administration’s tariffs and trade demands raise doubts about America’s commitment to security cooperation. This tension coincides with a notable decline in U.S. cultural influence in Japan, highlighting shifting attitudes across generations and an uncertain future for bilateral relations.

Japan’s relationship with the United States remains deeply complex, shaped by a long history marked by both cooperation and tension. After the US compelled Japan to end more than two centuries of isolation in 1854, rapid modernization set the stage for the country’s imperial ambitions and ultimately the Pacific War. Following Japan’s defeat, the US occupation enforced a pacifist constitution that has remained unchanged since.

Throughout the postwar period, Japan emerged as a key US ally in Asia, hosting roughly 100 American military bases and depending heavily on US security guarantees amid China’s expanding regional influence. Yet, economic and diplomatic strains have reemerged under the administration of President Donald Trump.

The Trump presidency introduced significant tariffs on Japanese goods and pushed Japan toward large-scale investments on stringent terms, raising concerns in Tokyo about Washington’s commitment to their mutual security treaty. Bilateral talks scheduled for the autumn are set against growing uncertainty about the future of the alliance.

Reactions within Japan to these developments vary markedly across generations. Laurie Wesselhoff, a cultural anthropologist and longtime lecturer at Tokyo’s Keio University, observes a sense of disillusionment among older Japanese generations. “Among older adults, I sense not a disgust with or dislike of the US so much as a great disappointment—a feeling of being betrayed by a country we worked so closely with for decades,” she said. In contrast, younger Japanese tend to view Trump through the lens of his media persona rather than his political record. Many of Wesselhoff’s students find humor in Trump’s social media presence while also resonating with his anti-establishment messaging.

Beyond politics, American cultural influence in Japan had already been waning prior to Trump’s administration. The share of Hollywood films in Japanese box offices has declined sharply—from approximately 70% around the year 2000 to less than 25% in 2024. American music’s popularity has experienced an even steeper drop. Kosuke Takaya, involved in the Japanese film and television industry, attributes this shift in part to the current US administration’s impact. “Under Trump, the US can’t be relied upon as it once could. I think their soft power is declining,” he said.

As Japan navigates a changing geopolitical and cultural landscape, the future dynamics of its alliance with the United States remain uncertain, illustrating the intricacies of a relationship that has evolved through profound historical transformations.

This article was reported by synthesizing coverage from multiple independent news outlets to present a balanced, unbiased account. Read about our editorial standards. Spotted an error? Let us know.