请将这一段翻译成英文，保持原有格式，不要在段落文本外添加描述： （注：此处为示例，实际翻译时请替换为需要翻译的具体段落内容。） Please translate this paragraph to English, maintain the original format, and do not add any descriptions outside the paragraph text: (Note: This is an example. Replace it with the specific paragraph you need to translate in practice.)

The Northeast Asian region is undergoing a reconstruction and transformation of its maritime and terrestrial geopolitical order. Continental powers are strengthening their capabilities, while strategic awareness of the oceans is growing, leading to frequent disputes over maritime rights and interests. The intervention of the United States has intensified regional maritime conflicts. Significant changes in the maritime policies of Northeast Asian countries involve maritime security, boundary demarcation, naval force development, and resource exploitation. The transformation of the order treats the ocean as a "battleground," progressing incrementally from the economic sphere to other domains. The strategic rivalry between China and the U.S. is intensifying, making Northeast Asia a focal point of great-power competition.

1. Post-War Marine Policies of Northeast Asian Countries and the Rise of Maritime Power Status

The evolution of post-war maritime policies in Northeast Asian countries and their impact on maritime power status were discussed. Northeast Asia boasts abundant marine resources, busy shipping routes, and significant economic value. After the Cold War, the maritime policies and maritime power development of these countries significantly strengthened, reshaping the regional maritime order. China's maritime policy shifted from "land-first, sea-second" to "integrated land-sea development," emphasizing the construction of a maritime power and active participation in global maritime governance. With the support of the U.S.-Japan alliance, Japan's maritime policy transitioned from economic reconstruction to pursuing regional dominance and legalizing maritime affairs, while strengthening maritime security. As a land-sea composite power, Russia's maritime strategy shifted from global expansion to regional defense, prioritizing the Arctic region and promoting marine economic development. South Korea emphasizes maritime sovereignty, advancing naval power development and marine resource exploitation to accelerate its transformation into a maritime power. North Korea's maritime policy shifted from resource exploitation to naval power development, enhancing national defense capabilities and improving economic self-sufficiency. The evolution of these countries' maritime policies reflects an elevated recognition of the strategic value of the oceans and responses to changes in the geopolitical landscape.

2. New Changes and Characteristics in the Maritime and Land Geopolitical Situation in Northeast Asia

The heightened strategic awareness of the ocean and the advancement of maritime geopolitical strategies among Northeast Asian nations have led to increasingly prominent and frequent disputes over maritime rights and interests. The intensifying geopolitical competition between China and the U.S. has further complicated the contest for maritime rights in the Northeast Asian region. Disputes over maritime rights in Northeast Asia primarily revolve around three aspects: sovereignty over islands, maritime boundary delimitation, and competition for marine resources. The South China Sea disputes and the Sino-Japanese East China Sea disputes, as representative cases of regional maritime rights conflicts, reflect the complexity and multidimensionality of such disputes in the area.

The maritime geopolitical competition between China and the U.S. in Northeast Asia and its surrounding regions is growing increasingly intense, involving areas such as the Taiwan Strait, the East China Sea, and the South China Sea. The U.S. maintains a dual stance between providing military support to Taiwan and adhering to the "One China" policy, while China views the Taiwan issue as a core interest concerning national reunification. The disagreements and confrontations between China and the U.S. over the South China Sea primarily focus on island sovereignty and "freedom of navigation." Similarly, maritime competition between the two nations in the East China Sea is fierce, with the U.S. opting to strengthen cooperation with its regional ally, Japan, to counterbalance China's growing influence in the region.

III. New Changes in the Northeast Asian Maritime Order and Emerging Trends in Maritime Rights Disputes Under the Balance of Sea Power and Land Power

After the Cold War, the strong intervention of the United States in Northeast Asia led to new changes in the region's maritime order and security landscape, with traditional security issues re-emerging as the primary agenda. Military budgets in Northeast Asian countries have generally increased, and the number of military collaborations and exercises has risen, displaying clear confrontational tendencies. The institutionalization of U.S.-Japan-South Korea cooperation has strengthened, bringing "extended deterrence" back onto the agenda. The United States has conducted various joint exercises and training activities in Northeast Asia, the Taiwan Strait, the South China Sea, and other regions, casting a shadow of militarization over these areas and prompting more countries in the region to engage in confrontational military preparations. Under these circumstances, disputes over maritime rights and interests in Northeast Asia have become increasingly complex.

The rise of China's maritime power has had geopolitical implications for Northeast Asia. With the growth of foreign trade and economic exchanges, developing the maritime economy has become the focus of China's maritime strategy. China has begun to participate more actively in global maritime cooperation while also asserting clearer sovereignty claims in relevant maritime disputes. The strengthening of naval capabilities and the transformation of its global maritime strategy have driven China to integrate into global maritime governance with a more open approach. Since the 21st century, China has enhanced bilateral cooperation with neighboring countries on maritime affairs. The rapid rise of China's maritime power, particularly its actions to safeguard its maritime sovereignty, has been perceived by the United States as a challenge to its maritime dominance in the Asia-Pacific region. In response, the U.S. has taken a series of measures to curb China's development in the maritime domain. The U.S. implemented the "Asia-Pacific Rebalance" strategy to strengthen its influence in the region and counter China's "expansion" in East Asian waters. The "Indo-Pacific Strategy" of the Trump and Biden administrations has inherited and expanded the "Asia-Pacific Rebalance" strategy, increasing pressure on China in the Taiwan Strait, East China Sea, and South China Sea. A few Asian countries support the U.S. strategy, particularly those with maritime disputes with China or those that view China as a potential security threat. These countries tend to establish closer security and economic ties with the U.S. to counterbalance China's influence in the Asia-Pacific region.

The shifting balance of maritime power and new trends in maritime rights conflicts among Northeast Asian nations. Since World War II, the balance of maritime power among Northeast Asian countries has undergone significant changes, profoundly impacting the region's international relations. During the Cold War, the maritime power dynamics in Northeast Asia were primarily shaped by U.S.-Soviet rivalry. The U.S. established and reinforced alliances with Japan and South Korea to contain Soviet influence. Although the Soviet Union had limited direct military presence in the region, it indirectly affected the power balance by supporting China and North Korea. The confrontation between U.S.-led maritime power and Soviet-led continental power ultimately led to the outbreak of the Korean War. In the era of economic globalization, Northeast Asian countries have increasingly focused on maritime development and exploitation. While emphasizing the growth of the maritime economy, they have also taken measures to strengthen naval capabilities to protect maritime trade and resources. During this period, developing the maritime economy and safeguarding maritime rights became key strategic objectives for nations in the region. Since the 21st century, China's rapid economic growth and significant naval expansion have positioned it as a counterbalance to U.S. maritime hegemony in Northeast Asia and surrounding areas. This has prompted the U.S. to adopt a series of measures to curb China's rise, making U.S.-China competition a major factor shaping the new security order in Northeast Asia. To effectively counter China's rise, the U.S. has not only strengthened its military alliances with Japan and South Korea but has also directly intervened in maritime disputes in the region, further complicating the security landscape and intensifying conflicts among regional states. The U.S.-Soviet rivalry, the development of economic globalization, and the current U.S.-China strategic competition have shaped the complex security order in Northeast Asia, which revolves around strong territorial and maritime sovereignty claims. Disputes over territory and maritime boundaries in the region remain unresolved and have grown even more intricate. Among these, disputes involving island sovereignty and maritime delimitation are particularly severe. Major Northeast Asian countries—China, Japan, Russia, South Korea, and North Korea—are deeply embroiled in maritime conflicts. Notable disputes include the Sino-Japanese Diaoyu Islands dispute, Sino-South Korean maritime rights disputes (including fishing conflicts), the South Korea-Japan island dispute, the Russia-Japan island dispute, the North Korea-South Korea island and maritime boundary dispute, and the Taiwan Strait issue. Frequent and escalating maritime disputes and security concerns have become new hotspots, challenges, and threats to Northeast Asia's security landscape. Territorial and maritime rights disputes in the region can be broadly categorized as follows: The first category involves both significant international security interests and major economic interests, such as the Japan-Russia dispute over the Northern Territories (known as the Southern Kuril Islands in Russia) and the disputes between China and some Southeast Asian nations over the Spratly Islands—though the degree of conflict varies between these cases. The second category primarily concerns national security interests, with economic interests playing a lesser role, such as the Sino-Japanese Diaoyu Islands dispute and the South Korea-Japan Dokdo (Takeshima in Japan) dispute. The third category mainly involves economic interests, with political and security concerns being less prominent, such as the Sino-Japanese East China Sea delimitation dispute, the Japan-South Korea East China Sea delimitation dispute, and certain disputes between China and five Southeast Asian nations in the South China Sea. Beyond national security and economic interests, other factors also significantly influence territorial and maritime disputes in Northeast Asia, including historical grievances, political and cultural traditions, the role and pressure of external third parties, developments in international law, and shifts in regional and global dynamics. Overall, however, their impact ultimately manifests through political mechanisms.

IV. The United States' Northeast Asia Maritime Policy in the Post-Cold War Era and Its Impact on the Geopolitical Order

After the Cold War, the United States shifted its focus to the Pacific-Asia-Indian Ocean region, driving a maritime strategic transformation to counter challenges from emerging maritime powers like China. The U.S. views the "Indo-Pacific" as a critical region, with Northeast Asia potentially serving as the epicenter of 21st-century geopolitical shifts. Leveraging sea control to consolidate maritime dominance, the U.S. seeks to shape the geopolitical order in Northeast Asia and China's periphery. The evolution of U.S. policy toward the Taiwan Strait involves political, economic, and military support for Taiwan, obstructing China's reunification and using Taiwan as a tool to contain China. By intervening in Taiwan Strait security affairs, the U.S. aims to establish the region as a geopolitical pivot, constructing an axis of containment against China.

The U.S. actively involves itself in Northeast Asian island and maritime disputes, such as those over the Diaoyu Islands, the Southern Kuril Islands (Northern Territories), and the Dokdo/Takeshima dispute between South Korea and Japan, to curb China's rise and uphold its own hegemonic position. Strategies to maintain maritime hegemony in Northeast Asia include strengthening military superiority, meddling in regional maritime disputes, reinforcing U.S.-Japan and U.S.-South Korea alliances, and advancing the "Indo-Pacific Strategy." Through joint military exercises, arms sales, and military aid, the U.S. demonstrates its military prowess to influence regional power dynamics and preserve a maritime order aligned with its interests.

The "Indo-Pacific Strategy" has become a top-tier U.S. strategy, emphasizing the establishment of a "free, open, and rules-based" international order while rallying regional allies to pressure China on maritime issues.

V. The Growing Prominence of Maritime Power and China's Northeast Asia Maritime Strategy

The post-Cold War competition between sea power and land power in the geopolitical order of Northeast Asia has shifted toward the maritime domain, leading to an increase in maritime disputes. Contributing factors include the impact of islands on the delineation of exclusive economic zones, the strategic value of maritime transportation, competition for resources, the complexity of disputes, and the inadequacies of international maritime law. Political and security considerations in these disputes have diminished, while economic factors have gained prominence, creating dual implications for dispute resolution. The United States has intensified its ideological offensive against China and Russia, further highlighting the importance of sea power in regional security. Northeast Asia faces three major geopolitical risks: the U.S. alliance system in the Asia-Pacific, regional arms races and the risk of nuclear proliferation, and the trend of interconnected geopolitical flashpoints. China needs to formulate a maritime strategy for Northeast Asia, which includes preventing the solidification of a "new Cold War" structure, promoting the establishment of security dialogue platforms, deepening cooperation with regional countries, strengthening maritime hard power and modernization efforts, advancing the construction of a new maritime order, and jointly building a maritime community with a shared future.