July 27 in Military History

The French National Convention overthrows Maximilien Robespierre, ending the Reign of Terror. The political upheaval would ultimately clear the path for a young artillery officer named Napoleon Bonaparte to seize power.

The SS Great Eastern completes laying the first permanent transatlantic telegraph cable, revolutionizing military communications between continents and enabling near-instantaneous coordination between American and European forces.

Orville Wright successfully completes the Army's flight trials at Fort Myer, Virginia, flying for over one hour with a passenger. The demonstration secures the U.S. Army's first contract for a military aircraft, launching the age of military aviation.

RAF Coastal Command Anson and Hudson patrol aircraft conducted intensive anti-submarine sweeps over the Western Approaches to protect Atlantic convoys. The July 27, 1940, operations came during the most dangerous phase of the U-boat "happy time" when German submarines operated from captured French Atlantic ports with devastating effectiveness.

The First Battle of El Alamein ends with the British Eighth Army having halted Rommel's advance toward Egypt and the Suez Canal, marking the farthest point of the Axis advance in North Africa.

After three years of fighting and two years of negotiations, the Korean War Armistice Agreement is signed at Panmunjom, establishing the Korean Demilitarized Zone and ending hostilities that killed over 36,000 Americans and millions of Korean and Chinese combatants and civilians.

American fighter pilots claim the final aerial victories of the Korean War in the hours before the armistice takes effect. During the conflict, U.S. pilots claimed 792 MiG-15s destroyed in air-to-air combat.

The House Judiciary Committee approved the first article of impeachment against President Richard Nixon for obstruction of justice, 27-11. The move precipitated Nixon's August 8 resignation and reshaped civil-military relations by clarifying procedures for presidential removal during wartime command authority questions.

A pipe bomb exploded at Centennial Olympic Park during the Atlanta Summer Olympics, killing two and injuring 111. The FBI's response, involving military explosive ordnance disposal and hazardous-materials teams, accelerated integration of DOD capability into civilian counter-terrorism operations and shaped domestic consequence-management doctrine.

President Joe Biden began recovery from a second COVID-19 rebound infection. The sequence of infections and the aggressive Paxlovid treatment shaped Department of Defense and Veterans Affairs treatment protocols for COVID-19 in deployed service members and high-risk veterans, formalized in December 2022 revisions.