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The triarii stood in the third line of the legion, behind the front line of hastati and the second line of principes, and in front of the rorarii and accensi. [6] In a pitched battle , the leves , javelin-armed skirmishers who were attached to maniples of hastati , would form up at the front of the legion and harass the enemy with javelin fire ...
A defense line or fortification line is a geographically recognizable line of troops and armament, fortified and set up to protect a high-value location or defend territory. A defense line may be based on natural difficult terrain features, such as rivers or marshes, mountain ranges, or coastlines; temporary field fortification works such as ...
Metabolic component: The third line of defense is slow, best measured by the base excess, [9] and mostly depends on the renal system which can add or remove bicarbonate ions (HCO − 3) to or from the ECF. [5] Bicarbonate ions are derived from metabolic carbon dioxide which is enzymatically converted to carbonic acid in the renal tubular cells.
At the front of the battle zone he chose the old third line from Méricourt to Oppy, then a new line along reverse slopes from Oppy to the Hindenburg Position at Moulin-sans-Souci, creating a battle zone 2,500 yd (1.4 mi; 2.3 km) deep. A rearward battle zone 3,000 yd (1.7 mi; 2.7 km) backed on to the Wotan line, which was nearing completion.
The Third Front Movement was carried out in a hurry. Many Third Front projects were simultaneously being designed, constructed, and put in production, (biansheji, bianshigong, bianshengchan). After rapprochement with the United States reduced the national defense considerations underlying the Third Front, investment in its projects decreased.
Defence in depth (also known as deep defence or elastic defence) is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space. Rather than defeating an attacker with a single, strong defensive line, defence in depth relies on the tendency of an attack ...
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Interior lines [a] (as opposed to exterior lines) is a military term, derived from the generic term line of operation or line of movement. [1] The term "interior lines" is commonly used to illustrate, describe, and analyze the various possible routes (lines) of logistics, supply, recon, approach, attack, evasion, maneuver, or retreat of armed forces.