Each Sector-Specific Agency develops a sector-specific plan through a coordinated effort involving its public and private sector partners. The Department of Homeland Security is designated as the Sector-Specific Agency for the Emergency Services Sector. The Emergency Services Sector (ESS) is a community of millions of highly-skilled, trained personnel, along with the physical and cyber resources, that provide a wide range of prevention, preparedness, response, and recovery services during both day-to-day operations and incident response.
Battle of Baltimore. The British, while at war with France, had interfered with U.S. trade and had boarded American ships to force sailors into service on their ships. It was not until 1814, after England had defeated Napoleon, that the British would test a stubborn, determined people in Baltimore, an anti-British hotbed.
Key was aboard a ship in the harbor at Fort McHenry and witnessed the British bombardment of the fort in September, 1814 during the War of 1812. Key wrote the lyrics as a poem called Defence [sic] of Fort McHenry. The lyrics describe what Key saw during the attack, and especially his pride and relief and pride at seeing the American flag flying over the fort, signaling a successful defense of Baltimore. By the way, the tune is not original.