美发布国防战略报告 本土安全及其在西半球利益为最优先事项

Core Viewpoint - The U.S. Department of Defense's 2026 defense strategy report prioritizes homeland security and interests in the Western Hemisphere, emphasizing the need to strengthen alliances and develop the defense industrial base [1] Group 1: Homeland Security and Western Hemisphere Interests - The Pentagon identifies the protection of the U.S. homeland as its primary mission and aims to restore military dominance in the Western Hemisphere [1] - The report outlines plans to ensure border security, combat "drug terrorists" in the Western Hemisphere, and maintain control over key regions from the Arctic to South America, particularly Greenland, the Gulf of Mexico, and the Panama Canal [1] Group 2: Defense Capabilities and Modernization - The Department of Defense will prioritize the development of the Iron Dome missile defense system and capabilities to counter drone systems, as well as modernizing and adapting U.S. nuclear forces [1] - The report emphasizes enhancing cyber defenses for both military and certain civilian targets [1] Group 3: Threat Assessments and Regional Responsibilities - Russia is described as a controllable threat to NATO's eastern members, possessing the largest nuclear arsenal and capabilities to attack the U.S. homeland [2] - The report states that NATO allies are fully capable of taking on the primary responsibility for conventional defense in Europe, with the U.S. providing limited support [2] - The U.S. will continue to play a key role within NATO while adjusting troop deployments and actions in Europe [2] Group 4: Middle East and North Korea Threats - The report asserts that Iran must not be allowed to acquire nuclear weapons and highlights ongoing efforts to support Israel and deepen cooperation with Gulf Arab states to enhance regional defense capabilities [2] - North Korea poses a direct military threat to South Korea and Japan, with its nuclear capabilities increasingly threatening the U.S. [2] - South Korea is expected to take on the primary responsibility for deterring North Korea with limited support from the U.S. [2]