A bipartisan group of U.S. senators has introduced a resolution condemning China's economic, military, and diplomatic pressure on Japan amid tensions over Taiwan. The measure expresses unwavering support for the U.S.-Japan alliance and recognizes Japan as a key partner in maintaining a free and open Indo-Pacific. It comes in response to China's hard-line stance following Prime Minister Sanae Takaichi's remarks on a potential Taiwan contingency.
On December 18, 2025, a bipartisan resolution was introduced in the U.S. Senate, led by Sen. Pete Ricketts (R), chairman of the Senate Foreign Relations Committee's East Asia Subcommittee, and Sen. Christopher Coons (D), the ranking member. Co-sponsors include Sen. Bill Hagerty (R), a former U.S. ambassador to Japan, and Sen. Jeanne Shaheen (D). The resolution criticizes China for exerting “economic, military, and diplomatic coercion and aggression” against Japan and applauds Tokyo's efforts to diffuse tensions amid Beijing's “continuous unilateral provocation.”
It recognizes Japan's role as a key ally in maintaining a free and open Indo-Pacific and reaffirms that Article 5 of the U.S.-Japan Treaty of Mutual Cooperation and Security applies to the Senkaku Islands, administered by Japan but claimed by China as the Diaoyu Islands.
The resolution stems from Prime Minister Sanae Takaichi's November 7 remarks in parliament, where she responded to an opposition lawmaker's hypothetical question by suggesting that an attack on Taiwan could pose an existential threat to Japan, potentially triggering collective self-defense alongside the United States. China, which regards Taiwan as its territory and has not ruled out force to achieve unification, has reacted strongly. Since the comments, Beijing has urged its citizens to avoid travel to Japan and dispatched coast guard vessels to waters near the Senkaku Islands.
“The United States will always stand strong with Japan,” Ricketts said in a statement, adding that the decades-old alliance serves as the cornerstone of regional peace, security, and prosperity. The resolution notes that Takaichi's statements align with previous positions from senior Japanese officials.
In the House of Representatives, Reps. Ami Bera and Gregory Meeks have sent a letter to President Donald Trump urging stronger U.S. support for Japan over the prime minister's Taiwan-related remarks, including easing tariff pressures. The lawmakers are also considering a bipartisan House resolution.
The Trump administration has not publicly stated its position on the escalating Japan-China tensions. Last week, White House spokeswoman Karoline Leavitt sidestepped questions on whether the administration is concerned about a potential conflict, instead highlighting Trump's good relationships with both Takaichi and Chinese President Xi Jinping.
This development underscores efforts to bolster the U.S.-Japan alliance amid rising frictions between Tokyo and Beijing.
