In September 2018, Abe's Liberal Democratic Party (LDP) held an internal party leadership vote in which Abe defeated former Defense Minister Shigeru Ishiba, securing a three-year term as party president. With the LDP and its coalition partner, the much smaller Komeito party, firmly in control of Japan's legislature, Abe's victory in the LDP leadership contest means that he will continue serving as premier. (For background on Japanese politics, see the " Japanese Politics " section.) Trump's shift on North Korea—including his decision to suspend U.S.-South Korean military exercises to obtain greater concessions from Pyongyang—and his statements critical of the value of alliances generally and Japan specifically have increased questions among Japanese policymakers about the depth and durability of the U.S. commitment to Japan's security. China and Japan Look to Stabilize Relations

Despite an ongoing territorial dispute in the East China Sea, Japan and China appear to be seeking stability in their bilateral relationship, a trend that has accelerated in the past several months. The emphasis on economic issues has emerged as the two sides have sought to manage tensions in the security realm. Japan's Uneasy Relations with South Korea

Japan's relations with South Korea remain precarious despite a rapprochement in 2016. Japan's Foreign Policy and U.S.-Japan Relations

		U.S.-Japan Relations in the Trump Presidency

Although candidate Donald Trump made statements critical of Japan during his campaign, relations have remained strong on the surface throughout several visits and leaders' meetings. Some analysts have expressed concern about the differences in approach to global issues between the Trump Administration and Tokyo. Japan is a firm supporter of the United Nations as a forum for dealing with international disputes and concerns. To cite one example, several Japanese cabinet members expressed disappointment in the Trump Administration's decision to withdraw from the Paris climate accord. Abe's Leadership

If Abe remains in office through November 2019, as expected, he will become the longest-serving prime minister in post-war Japan. However, it also has been U.S. policy since 1972 that the 1960 U.S.-Japan Security Treaty covers the Senkakus, because Article 5 of the treaty stipulates that the United States is bound to protect "the territories under the Administration of Japan," and Japan administers the Senkakus. Japan is directly threatened by North Korea given the demonstrated capability of Pyongyang's medium-range missiles; in 2017, North Korea twice tested missiles that flew over Japanese territory. In addition, U.S. bases in Japan could be targeted by the North Koreans in any military contingency. Shortly after returning to office in 2012, Abe released an article outlining his foreign and security policy strategy titled "Asia's Democratic Security Diamond," which described how the democracies of Japan, Australia, India, and the United States could cooperate to deter Chinese aggression on its maritime periphery. The bilateral defense guidelines also seek to improve alliance coordination. Realignment of the U.S. Military Presence on Okinawa

Due to the legacy of the U.S. occupation and the island's key strategic location, Okinawa hosts a disproportionate share of the U.S. military presence in Japan. U.S. trade with Japan has largely risen over the same time period. A number of factors may have contributed to this trend: 
Japan's slow economic growth—beginning with the burst of the asset bubble in the 1990s—has changed the general U.S. perception of Japan from one as an economic competitor to one as a "humbled" economic power; significant Japanese investment in the United States including in automotive manufacturing facilities has linked production of some Japanese branded products with U.S. employment; the successful conclusion of the multilateral Uruguay Round agreements in 1994 led to further market openings in Japan, and established the World Trade Organization (WTO) and its enhanced dispute settlement mechanism, which has provided a forum used by both Japan and the United States to resolve trade disputes; the rise of China as an economic power and trade partner has caused U.S. policymakers to shift attention from Japan to China as a primary source of concern; and the growth in the complexity and number of countries involved in global supply chains has likely diffused or shifted concerns over import competition as many Japanese products are now imported into the United States as components in finished products from other countries, thereby reducing the bilateral trade deficit. U.S. Tariffs Under the Trump Administration

The Trump Administration has imposed tariffs on several significant U.S. imports from Japan. In March 2018, President Trump announced tariffs of 25% and 10% on certain U.S. steel and aluminum imports, respectively. U.S.-Japan Bilateral Trade Agreement Negotiations89

On September 26, President Trump and Prime Minister Abe announced their intent to start formal bilateral trade agreement negotiations. Japan had been hesitant to engage in formal bilateral trade talks as it remains committed to the regional Trans-Pacific Partnership (TPP) and through which it had already agreed to politically sensitive concessions, particularly in agriculture, to the United States, who withdrew from the agreement in 2017.
Japan is a significant partner of the United States in a number of foreign policy areas, particularly in security concerns, which range from hedging against Chinese military modernization to countering threats from North Korea. The U.S.-Japan military alliance, formed in 1952, grants the U.S. military the right to base U.S. troops—currently around 50,000 strong—and other military assets on Japanese territory, undergirding the "forward deployment" of U.S. troops in East Asia. In return, the United States pledges to protect Japan's security.
Although candidate Donald Trump made statements critical of Japan during his campaign, relations have remained strong, at least on the surface, throughout several visits and leaders' meetings. Bilateral tensions have arisen in 2018, however. On North Korea policy, Tokyo has conveyed some anxiety about the Trump Administration's change from confrontation to engagement, concerned that Japan's priorities will be marginalized as the United States pursues negotiations with North Korea. More broadly, Japan is worried about the U.S. commitment to its security given Trump's skepticism about U.S. alliances overseas. Contentious trade issues have also resurfaced as the two governments look to negotiate a bilateral accord. In addition, Japan has expressed disappointment about the Trump Administration's decision to withdraw from the Trans-Pacific Partnership (TPP) agreement and the United Nations Framework Convention on Climate Change (UNFCCC) Paris Agreement on addressing climate change.
Japan is the United States' fourth-largest overall trading partner, Japanese firms are the second largest source of foreign direct investment in the United States, and Japanese investors are the second largest foreign holders of U.S. treasuries. Tensions in the trade relationship have increased under the Trump Administration. The U.S.-Japan announcement on September 26, 2018, of their intent to begin formal bilateral trade agreement negotiations has eased concerns over potential U.S. import restrictions on motor vehicle and parts trade, but certain U.S. steel and aluminum imports from Japan remain subject to increased U.S. tariffs. The trade talks could prove challenging given the Trump Administration's focus on the bilateral U.S. trade deficit, particularly in autos—Japan's largest export to the United States in 2017. Japan had been hesitant to pursue bilateral negotiations as it remains committed to the TPP.
After years of turmoil, Japanese politics has been relatively stable since the December 2012 election victory of Prime Minister Shinzo Abe and his Liberal Democratic Party (LDP), and further consolidated in the LDP's subsequent parliamentary gains. With the major opposition parties in disarray, the LDP's dominance does not appear to be threatened. Abe could become Japan's longest serving post-war leader if he remains in office throughout this term. However, Abe may struggle to pursue the more controversial initiatives of his agenda, such as increasing the Japanese military's capabilities and flexibility, because of his reliance on a coalition with a smaller party.
With his political standing secured, Abe continues his diplomatic outreach, possibly hedging against an over-reliance on the U.S alliance. Since 2016, Abe has sought to stabilize relations with China, despite an ongoing territorial dispute and Japanese concerns about China's increasing assertiveness in its maritime periphery. Relations with South Korea, while stable, remain fraught with sensitive historical issues and differences in how to approach North Korea. Elsewhere, Abe has pursued stronger relations with Australia, India, Russia, and several Southeast Asian nations.
In the past decade, U.S.-Japan defense cooperation has improved and evolved in response to security challenges, such as the North Korean missile threat and the confrontation between Japan and China over disputed islands. Abe accelerated the trend by passing controversial security legislation in 2015. Much of the implementation of the laws, as well as of U.S.-Japan defense guidelines updated the same year, lies ahead, and full realization of the goals to transform alliance coordination could require additional political capital and effort. Additional concerns remain about the implementation of an agreement to relocate the controversial Futenma base on Okinawa, particularly after the September gubernatorial election of a politician opposed to the relocation.