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  2. National Defense Service Medal - Wikipedia

    en.wikipedia.org/wiki/National_Defense_Service_Medal

    The National Defense Service Medal (NDSM) is a service award of the United States Armed Forces established by President Dwight D. Eisenhower in 1953. It was awarded to every member of the U.S. Armed Forces who served during any one of four specified periods of armed conflict or national emergency from June 27, 1950 through December 31, 2022.

  3. United States Army enlisted rank insignia - Wikipedia

    en.wikipedia.org/wiki/United_States_Army...

    United States Army enlisted rank insignia. The chart below shows the current enlisted rank insignia of the United States Army, with seniority, and pay grade, increasing from right to left. The enlisted ranks of corporal (E-4) and higher are considered non-commissioned officers (NCOs). The rank of specialist is also in pay grade E-4, but does ...

  4. Electrothermal-chemical technology - Wikipedia

    en.wikipedia.org/wiki/Electrothermal-chemical...

    Electrothermal-chemical ( ETC) technology is an attempt to increase accuracy and muzzle energy of future tank, artillery, and close-in weapon system [1] guns by improving the predictability and rate of expansion of propellants inside the barrel. An electrothermal-chemical gun uses a plasma cartridge to ignite and control the ammunition's ...

  5. List of NATO country codes - Wikipedia

    en.wikipedia.org/wiki/List_of_NATO_country_codes

    This is a list of NATO country codes. Up to and including the seventh edition of STANAG 1059, these were two-letter codes (digrams). The eighth edition, promulgated 19 February 2004, and effective 1 April 2004, replaced all codes with new ones based on the ISO 3166-1 alpha-2 codes. Additional codes cover gaps in the ISO coverage, deal with ...

  6. Bulk loaded liquid propellants - Wikipedia

    en.wikipedia.org/wiki/Bulk_loaded_liquid_propellants

    Bulk loaded liquid propellants are an artillery technology that was pursued at the U.S. Army Research Laboratory and U.S. Naval Weapons Center from the 1950s through the 1990s. The advantages would be simpler guns and a wider range of tactical and logistic options. Better accuracy and tactical flexibility would theoretically come from standard ...

  7. List of current formations of the United States Army - Wikipedia

    en.wikipedia.org/wiki/List_of_current_formations...

    This is a list of current formations of the United States Army, which is constantly changing as the Army changes its structure over time. Due to the nature of those changes, specifically the restructuring of brigades into autonomous modular brigades, debate has arisen as to whether brigades are units or formations; for the purposes of this list, brigades are currently excluded.

  8. Battle of Fort Sumter - Wikipedia

    en.wikipedia.org/wiki/Battle_of_Fort_Sumter

    e. The Battle of Fort Sumter (April 12–13, 1861) was the bombardment of Fort Sumter near Charleston, South Carolina by the South Carolina militia. It ended with its surrender by the United States Army, beginning the American Civil War . Following the declaration of secession by South Carolina on December 20, 1860, its authorities demanded ...

  9. Pyrotechnic initiator - Wikipedia

    en.wikipedia.org/wiki/Pyrotechnic_initiator

    Pyrotechnic initiator. In pyrotechnics, a pyrotechnic initiator (also initiator or igniter) is a device containing a pyrotechnic composition used primarily to ignite other, more difficult-to-ignite materials, such as thermites, gas generators, and solid-fuel rockets. The name is often used also for the compositions themselves.