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  2. Walter Yeo - Wikipedia

    en.wikipedia.org/wiki/Walter_Yeo

    A photograph of Walter Yeo in 1917, showing his face before (left) and after the tube pedicle flap reconstruction of his face (right).. Walter Ernest O'Neil Yeo (20 October 1890 – December 1960) was an English sailor in the First World War, who is thought to have been one of the first people to benefit from advanced plastic surgery, namely a skin flap.

  3. M2 gas mask - Wikipedia

    en.wikipedia.org/wiki/M2_gas_mask

    American soldiers wearing M2 gas masks in a frontline trench (1919 postcard image) The M2 gas mask was a French-made gas mask used by French, British and American forces from April 1916 to August 1918 during World War I. [1] The M2 was fabricated in large quantities, with about 29,300,000 being made during the war. [2]

  4. Official Military Personnel File - Wikipedia

    en.wikipedia.org/wiki/Official_Military...

    The Official Military Personnel File (OMPF), known as a 201 File in the U.S. Army, is an Armed Forces administrative record containing information about a service member's history, such as: [1] Promotion Orders; Mobilization Orders; DA1059s – Service School Academic Evaluation Reports; MOS Orders; Awards and decorations; Transcripts

  5. Battlefield medicine - Wikipedia

    en.wikipedia.org/wiki/Battlefield_medicine

    Combat medics attend to Irish casualties following the opening attack of the Battle of Passchendaele, 1917. Battlefield medicine, also called field surgery and later combat casualty care, is the treatment of wounded combatants and non-combatants in or near an area of combat.

  6. United States in World War I - Wikipedia

    en.wikipedia.org/wiki/United_States_in_World_War_I

    After declaring war, the U.S. mobilized over 4.7 million military personnel. General of the Armies John Pershing, served as Commander-in-Chief of the American Expeditionary Force (AEF) in France, of which over 2 million American soldiers served. The first American troops arrived to Europe in June 1917 at a slow rate, but by the Summer of 1918 ...

  7. Small box respirator - Wikipedia

    en.wikipedia.org/wiki/Small_box_respirator

    Earlier versions of the gas mask prior to 1915s development of the small box respirator were crude and ineffective as no troops had yet experienced poison warfare. One of the first gas masks seen in the early part of the war was the British hypo helmet, after recent failure and ineffectiveness of the black veil respirator. The helmet was ...

  8. Zelinsky-Kummant gas mask - Wikipedia

    en.wikipedia.org/wiki/Zelinsky-Kummant_gas_mask

    The Zelinsky-Kummant gas mask was the world's first gas mask [1] which had the ability to absorb a wide range of chemical warfare agents. The gas mask was developed in 1915 by Russian chemist Nikolay Zelinsky and technologist of the Triangle plant M.I. Kummant. [2] The design was later improved by I. D. Avalov and entered mass production.

  9. Hypo helmet - Wikipedia

    en.wikipedia.org/wiki/Hypo_helmet

    [10] 2.5 million masks were manufactured before being superseded. The helmet was a 50.5 cm × 48 cm (19.9 in × 18.9 in) canvas hood treated with chlorine-absorbing chemicals, fitted with a single rectangular mica eyepiece. [11] [a] It was a khaki-coloured flannel bag soaked in a solution of glycerin and sodium thiosulphate. The soldier placed ...