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an enclosed field fortification work in the shape of a square, rectangle, or other polygon, prepared for independent defense.

Redoubts were strongpoints in the system of fortified positions. The redoubt garrison consisted of one or two companies, sometimes reinforced with artillery. Redoubts were used extensively from the 16th to early 20th centuries.


A small fortification detached from the principal site.
References in classic literature ?
After the loss of the Shevardino Redoubt, we found ourselves on the morning of the twenty-fifth without a position for our left flank, and were forced to bend it back and hastily entrench it where it chanced to be.
The battle of Borodino was not fought on a chosen and entrenched position with forces only slightly weaker than those of the enemy, but, as a result of the loss of the Shevardino Redoubt, the Russians fought the battle of Borodino on an open and almost unentrenched position, with forces only half as numerous as the French; that is to say, under conditions in which it was not merely unthinkable to fight for ten hours and secure an indecisive result, but unthinkable to keep an army even from complete disintegration and flight.
As they clipped away at the wire, bullets from the redoubt struck all around them.
The Yemeni government of President Abd-Rabbu Mansour Hadi fled to Riyadh in March as Houthi forces closed in on their last redoubt in Aden, triggering the Saudi-led intervention and fighting which has killed more than 4,500 people, many of them civilians.
The Druze redoubt is also threatened on its eastern flank by forces of "Islamic State", an Al-Nusra rival.
Consider, for example, the similarity in layout between the Schwaben Redoubt at the Somme and the Hornburg at Helm's Deep.
Summary: Iraqi forces need support from coalition airstrikes in Tikrit, where die-hard jihadis are defending their last redoubt with trenches, sandbags and roadside bombs, a top officer said Sunday, as the Kurds accused ISIS of using chemical weapons.
In late November 1953, to break up a Viet Minh invasion of neighboring Laos, the French established a redoubt at Dien Bien Phu, in the last valley of northwest Vietnam.
After stints in a juvenile punk band, he toured the region's bars and clubs, including the famed New York punk redoubt CBGBs, ew York punk redoubt CBGBs, with just an acoustic guitar.
The offshore platform will be the first new Cook Inlet production platform installed since 2000, when the Osprey platform was installed at the Redoubt Shoal field.
The red alert issued on Monday night was the first since 2009, when Alaska's Mount Redoubt produced a series of eruptions that spewed ash 50,000 feet (1,500 meters) into the air.