page_title: 139th Aero Squadron
hierarchical_section_title: 139th Aero Squadron
caption_attribution_description: English: 139th Aero Squadron, Belrain Aerodrome, France, November 1918
context_page_description: The 139th Aero Squadron was a United States Army Air Service unit that fought on the Western Front during World War I.
  The squadron was assigned as a day pursuit squadron as part of the 2d Pursuit Group, First United States Army. Its mission was to engage and clear enemy aircraft from the skies and provide escort to reconnaissance and bombardment squadrons over enemy territory. It also attacked enemy observation balloons, and performed close air support and tactical bombing attacks on enemy forces along the front lines.
  The squadron was very successful in combat, having half a dozen air aces including David Putnam, Karl Schoen, Robert Opie Lindsay, and future Brigadier General Harold H. George.
  After the 1918 Armistice with Germany, the squadron returned to the United States in June 1919 and was demobilized. There is no current United States Air Force or Air National Guard unit that shares its lineage and history.
context_section_description: The 139th Aero Squadron was a United States Army Air Service unit that fought on the Western Front during World War I.
  The squadron was assigned as a day pursuit (fighter) squadron as part of the 2d Pursuit Group, First United States Army.  Its mission was to engage and clear enemy aircraft from the skies and provide escort to reconnaissance and bombardment squadrons over enemy territory.  It also attacked enemy observation balloons, and performed close air support and tactical bombing attacks on enemy forces along the front lines.
  The squadron was very successful in combat, having half a dozen air aces including David Putnam, Karl Schoen, Robert Opie Lindsay, and future Brigadier General Harold H. George.
  After the 1918 Armistice with Germany, the squadron returned to the United States in June 1919 and was demobilized. There is no current United States Air Force or Air National Guard unit that shares its lineage and history.
caption: 139th Aero Squadron, Souilly Aerodrome, France, November 1918
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