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By January 1967, many 155mm and some 109mm Self Porpelled Guns in 2nd Field Artillery Group, FMF Atlantic, Camp Lejuene, N.C. required towing to position them for training exercises Vieques Island P.R. The self propelled fuction required more maintence than the artillery pieces value in the field. Marines are all about mobility!

Had the Six-Day war in June 1967 lasted long enough for 2nd FAG to deploy to the Middle East these long range field pieces may have shown a temporary value to the Corp.

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Q: Why marines 155mm self propelled guns went obsolete?
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