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In chess, an X-ray or X-ray attack is a tactic where a piece indirectly controls a square from the other side of an intervening piece. Generally, a piece performing an X-ray either: effects a skewer, [1] [2] [3] indirectly attacks an enemy piece through another piece or pieces, or; defends a friendly piece through an enemy piece.
1. Informative call of a contact that has suddenly appeared inside of meld/CCR/briefed range. 2. Criteria used as a self-defense method, within the ROE, to protect friendly air defense elements from hostile aircraft. Posit Request for position; response in terms of a geographic landmark, or off a common reference point. Post attack
Defensive design is the practice of planning for contingencies in the design stage of a project or undertaking. Essentially, it is the practice of anticipating all possible ways that an end-user could misuse a device, and designing the device so as to make such misuse impossible, or to minimize the negative consequences.
The first use of the joke opening in a FIDE-rated game between top grandmasters occurred during the Chess.com Global Championship finals in November 2022, which was an in-person rapid event played on Chess.com. Trailing 3–0 in his knockout match against Hikaru Nakamura, Polish GM Jan-Krzysztof Duda played 1.e3 and 2.Ke2.
Esterline Technologies Corporation was a publicly traded company that designs, manufactures, and markets specialty products primarily for aerospace and defense customers. [2] [3] The company is best known as a supplier of products and equipment for aerospace companies such as Boeing and Airbus; [4] [5] and for American and allied military forces.
The Nimzowitsch Defence (named after Aron Nimzowitsch) is a somewhat uncommon chess opening characterised by the moves: . 1. e4 Nc6. This opening is an example of a hypermodern opening in which Black invites White to occupy the centre of the board at an early stage with pawns. [1]
The Skyshield is designed for traditional anti-aircraft roles in addition to defense against missiles (see anti-ballistic missile). The Skyshield is deployed by trucks and other transportation systems. The fire control system (FCS) uses an X-band search and tracking radar X-TAR-3D, [2] and another unit for radar/TV and/or laser/FLIR precision ...
There is not a lot of research on the public health and environmental effects of chaff. A U.S. Department of Defense-sponsored 1998 research review stated that the "widespread environmental, human and agricultural impacts of chaff as currently used in training are negligible and far less than those from other man-made emissions." [2]