| 11. | A semicircle of field fortifications was created.
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| 12. | Engineer stores were rushed forward to repair captured caves, quarry entrances and field fortifications.
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| 13. | The vast majority of the Mannerheim Line was merely composed of trenches and other field fortifications.
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| 14. | The material effect depends on circumstances, as well-covered field fortification provide much protection.
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| 15. | Both places were surrounded by field fortifications and Gallabat was held by a colonial infantry battalion.
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| 16. | Poles attempted to regroup at the heavily fortified line of German World War I field fortifications.
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| 17. | They were also used against field fortifications, for clearing minefields and for breaching barbed wire.
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| 18. | The gun was intended for destruction of light field fortifications and openly placed personnel by direct fire.
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| 19. | Defensive positions ran the gamut-from imposing castles, to field fortifications with trenches and ramparts.
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| 20. | That Fort & Bridge form one of the best and strongest field fortifications ever erected against Indians ."
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