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  2. Organizational structure of the United States Department of ...

    en.wikipedia.org/wiki/Organizational_structure...

    The Pentagon, headquarters of the United States Department of Defense.. The United States Department of Defense (DoD) has a complex organizational structure.It includes the Army, Navy, the Marine Corps, Air Force, Space Force, the Unified combatant commands, U.S. elements of multinational commands (such as NATO and NORAD), as well as non-combat agencies such as the Defense Intelligence Agency ...

  3. List of formations in American football - Wikipedia

    en.wikipedia.org/wiki/List_of_formations_in...

    The "Nose Tackle" is still a DT (Defensive Tackle) with a different name. In this formation, the linemen often line up directly in front of the offensive line, while the linebackers "shoot the gaps". There is also a variation of this defense called the 3-4 under defense. This defense is a one gap version of the 3–4 defense.

  4. Formation (American football) - Wikipedia

    en.wikipedia.org/wiki/Formation_(American_football)

    The offense is required to set up a formation before a play, subject to several rules: The formation must have at least 7 players on the line of scrimmage. [1] The 7 players are not required to be next to each other and may spread out across the width of the field, but this is rare; most offenses place at least 5 players together in a continuous line.

  5. American football positions - Wikipedia

    en.wikipedia.org/wiki/American_football_positions

    A diagram showing an I formation on offense and a 4-3 formation on defense In American football , the specific role that a player takes on the field is referred to as their "position". Under the modern rules of American football, both teams are allowed 11 players [ 1 ] on the field at one time and have "unlimited free substitutions", meaning ...

  6. Three lines of defence - Wikipedia

    en.wikipedia.org/?title=Three_lines_of_defence&...

    This page was last edited on 21 December 2022, at 10:50 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  7. List of military strategies and concepts - Wikipedia

    en.wikipedia.org/wiki/List_of_military...

    Blitzkrieg – A method of warfare where an attacking force, spearheaded by a dense concentration of armoured and motorised or mechanised infantry formations with close air support, breaks through the opponent's line of defence by short, fast, powerful attacks and then dislocates the defenders, using speed and surprise to encircle them with the ...

  8. Gap (American football) - Wikipedia

    en.wikipedia.org/wiki/Gap_(American_football)

    Shooting the gap requires the defensive lineman to turn his shoulders and get past the offensive line into the backfield by any means possible, usually by diving through the gap. The play is often used during a blitz, as the defense will try to rush past the offensive line in order to get to the quarterback and cause a quarterback sack.

  9. 3–4 defense - Wikipedia

    en.wikipedia.org/wiki/3–4_defense

    The 3–4 defense incorporates three defensive linemen – two defensive ends and one nose tackle, who line up opposite the other team's offensive line.Those three players are responsible for engaging the other team's offensive line, allowing the four linebackers to either rush the quarterback or drop back into coverage, depending on the situation.