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National security, or national defence ( national defense in American English ), is the security and defence of a sovereign state, including its citizens, economy, and institutions, which is regarded as a duty of government. Originally conceived as protection against military attack, national security is widely understood to include also non ...
NSA/CSS is the leading agency for signals intelligence and cybersecurity in the U.S. It provides foreign intelligence, defends national security systems, and collaborates with allies and partners.
Sep 24, 2021 · Learn what national security means and how it has evolved over time. Explore the different levels and challenges of national security in the 21st century, from military to non-military threats.
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May 22, 2024 · May 30, 2024 • U.S. officials say Ukraine can now use some U.S. weapons defensively inside of the Kharkiv region, a change in policy for the Biden administration. May 30, 2024 • The U.S ...
Oct 12, 2022 · The strategy outlines how the U.S. will advance its vital interests and pursue a free, open, prosperous, and secure world in the face of strategic competition and shared challenges. It focuses on cooperation, investment, modernization, and leadership across regions and sectors.
Oct 12, 2022 · The US vision for a free, open, secure, and prosperous world and the plan to realize it are released by the State Department. The strategy aims to advance and defend this vision with allies and partners against revisionist, authoritarian powers and global challenges.
The phrase “national security” entered U.S. political discourse as early as the Constitutional Convention. The Federalists argued that civilian control of the military required a strong central government under a single constitution. Alexander Hamilton wrote: “If a well-regulated militia be the most natural defense of a free country, it ...
