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The armoured fist is the symbol of Armoured cavalry. This derives from the fact that armoured cavalry are good for putting stress on a single point until the line breaks. This should not be confused with the American hand-signal for halt or the commonwealth hand-signal for strongarm.
An example an armoured fist is incorporated into the crest of the Royal Canadian Armoured Corps.
The armoured fist's interponent is the infantry's crossed swords.