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  2. Ranks and insignia of NATO - Wikipedia

    en.wikipedia.org/wiki/Ranks_and_insignia_of_NATO

    The main difference is in the commissioned officer ranks, where the US system recognises two ranks at OF-1 level (O-1 and O-2), meaning that all O-x numbers after O-1 are one point higher on the US scale than they are on the NATO scale (e.g. a major is OF-3 on the NATO scale and O-4 on the US scale).

  3. Directorate of Operations (CIA) - Wikipedia

    en.wikipedia.org/wiki/Directorate_of_Operations...

    On March 1, 1973, DDP became the Directorate of Operations and the director became known as the Deputy Director for Operations (DDO). The Directorate also housed special groups for conducting counter-narcotics and counter-terrorism, for tracking nuclear proliferation, and other tasks. Approval of clandestine and covert operations

  4. Sergeant first class - Wikipedia

    en.wikipedia.org/wiki/Sergeant_first_class

    Sergeant First Class (SFC) is the seventh enlisted rank (E-7) in the U.S. Army, ranking above staff sergeant (E-6) and below master sergeant and first sergeant (E-8), and is the first non-commissioned officer rank designated as a senior non-commissioned officer (SNCO). A sergeant first class is typically assigned as a platoon sergeant at the ...

  5. Ranks and insignia of NATO armies officers - Wikipedia

    en.wikipedia.org/wiki/Ranks_and_insignia_of_NATO...

    Warrant officers (WOs) and chief warrant officers (CWOs) in the US military rank below officers but above officer candidates and enlisted servicemen. The first warrant officer rank, WO1 does not have a "commission" associated with it, instead having a "warrant" from the secretary of the army. Warrant officers are allowed the same courtesies as ...

  6. Uniformed services pay grades of the United States - Wikipedia

    en.wikipedia.org/wiki/Uniformed_services_pay...

    Structure. Pay grades are divided into three groups: [1] enlisted (E), warrant officer (W), and officer (O). Enlisted pay grades begin at E-1 and end at E-9; warrant officer pay grades originate at W-1 and terminate at W-5; and officer pay grades start at O-1 and finish at O-10. [a] Not all of the uniformed services use all of the grades; for ...

  7. List of United States Navy ratings - Wikipedia

    en.wikipedia.org/wiki/List_of_United_States_Navy...

    4 Compression ratings (AF, AV, CU, CB): Identify the combining of several general or service ratings at paygrade E-9 (E-8 for CU) to form broader career fields when the occupational content is similar. These ratings exist only at the E-8/E-9 levels and are not identified previously as a general or service rating.

  8. Ranks and insignia of NATO navies' officers - Wikipedia

    en.wikipedia.org/wiki/Ranks_and_insignia_of_NATO...

    Warrant Officer 1. NATO rank. WO-5. WO-4. WO-3. WO-2. WO-1. WO are used for United States warrant officers only. [33] Countries not listed use only regular officer ranks, do not have warrant officers, or warrant officers are considered OR (Other/Enlisted Rank).

  9. David Dunlap Observatory Catalogue - Wikipedia

    en.wikipedia.org/wiki/David_Dunlap_Observatory...

    David Dunlap Observatory Catalogue. David Dunlap Observatory Catalogue, known as the DDO or A Catalogue of Dwarf Galaxies, is a catalogue of dwarf galaxies that was compiled by Sidney van den Bergh and published by the David Dunlap Observatory in 1959 (and later expanded in 1966).