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Each unit is stationed behind and to the right (a "right echelon"), or behind and to the left ("left echelon"), of the unit ahead. The name of the formation comes from the French word échelon, meaning a rung of a ladder, which describes the shape that this formation has when viewed from above or below.
A matrix is in row echelon form if . All rows having only zero entries are at the bottom. [1]The leading entry (that is, the left-most nonzero entry) of every nonzero row, called the pivot, is on the right of the leading entry of every row above.
A thesaurus (pl.: thesauri or thesauruses), sometimes called a synonym dictionary or dictionary of synonyms, is a reference work which arranges words by their meanings (or in simpler terms, a book where one can find different words with similar meanings to other words), [1] [2] sometimes as a hierarchy of broader and narrower terms, sometimes simply as lists of synonyms and antonyms.
Two internal NSA newsletters from January 2011 and July 2012, published as part of Edward Snowden's leaks by the website The Intercept on 3 August 2015, for the first time confirmed that NSA used the code word ECHELON and provided some details about the scope of the program: ECHELON was part of an umbrella program with the code name FROSTING ...
Thomas J. Newman, a Quartermaster Corps major in 1993, analyzes the roles of combat service support at EAC. It must be remembered that US Army doctrine was in flux as his monograph was being developed, analyzing the lessons learned from Operation Desert Storm, but the Army not yet gone to the major restructuring into units of action/brigade combat teams and units of employment.
Armies using the tercio generally intended to field them in brigades of at least three tercios, with one in the front and two behind, the rearward formations echeloned off on either side so that all three resembled a stepped pyramid. The word tercio means "a third" (that is, one third of the whole brigade).
Roman military tactics evolved from the type of a small tribal host-seeking local hegemony to massive operations encompassing a world empire. This advance was affected by changing trends in Roman political, social, and economic life, and that of the larger Mediterranean world, but it was also under-girded by a distinctive "Roman way" of war.
A synonym is a word, morpheme, or phrase that means precisely or nearly the same as another word, morpheme, or phrase in a given language. [2] For example, in the English language , the words begin , start , commence , and initiate are all synonyms of one another: they are synonymous .