Hello Michael, The term comes from the use of the jagged line (not a zig zag) on the artillery formation patches of the FWW. The jagged line represented the sound of thunder which was simplified to a zig zag.
My confusion between 1 AGRA and 2 AGRA with the 1 Cdn Corps RCA and 2 Cdn Corps RCA in designation. The patch on the tunic is 1 Cdn Corps RCA. Both First Cdn Army 1 AGRA and First Cdn Army 2 AGRA wore the same patch.
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Res ipsa loquitur
Last edited by Bill A; 16-10-12 at 03:12 PM.
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