• Source: National redoubt

A national redoubt or national fortress is an area to which the (remnant) military forces of a nation can be withdrawn if the main battle has been lost or even earlier if defeat is considered inevitable. Typically, a region is chosen with a geography favouring defence, such as a mountainous area or a peninsula, to function as a final holdout to preserve national independence and host an effective resistance movement for the duration of the conflict.




Western Europe






= Belgium

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From the middle of the 19th century until 1914 the fortress city of Antwerp was the official National Redoubt of Antwerp in Belgium.
Fortress Antwerp was a defensive belt of fortifications built in two rings to defend Antwerp. Antwerp was designated to be a national redoubt (French: Réduit national or Dutch: De versterkte stelling Antwerpen) in case Belgium was attacked. It was built in the period 1859–1914. In total it encompasses a belt of fortifications of 95 km. During the 1914 Siege of Antwerp it held out for 12 days.




= France

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In 1940 Brittany was briefly considered a national redoubt in the last stages of the Battle of France, but proved impractical.




= Netherlands

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Until 1920, the "Fortress Amsterdam" was the national redoubt of the Netherlands. Between 1920 and 1940, Fortress Amsterdam was extended to Fortress Holland, to include a larger part of the country's heartland. In both cases, neither "redoubt" proved defensible even though the Dutch Water Line, a precursor in the Netherlands, managed to stop the advances of the French troops in the Rampjaar 1672, providing the Dutch with the needed time to gain the upper hand.




= Norway

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= Portugal

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From the early 19th century to World War II, Lisbon was considered the national redoubt of Portugal. Besides being the capital, the largest city and the major port of the country, Lisbon was considered the last defensible redoubt in case of an invasion of Portugal by a major power. During this period, successive systems of defense were implemented.
The first major defense system of Lisbon was built during the Peninsular War, as the Lines of Torres Vedras. These consisted in two lines of fortifications that protected the region of Lisbon (with a third line around the coastal fortress of São Julião da Barra). The Lines of Torres Vedras were able to block Masséna's 1810 offensive.
Another major defense system was implemented in the late 19th century as the Lisbon Entrenched Camp. This was a modern (for its day) system of fortifications, aimed to protect the Portuguese capital against an attack coming from land or from the sea. Its land component sector consisted in several modern forts, connected by protected roads and telegraph lines. Its sea front defense consisted in coastal artillery batteries, complemented by naval dedicated assets, including a coastal battleship, torpedo boats, submarines and naval mines.
The last major system of defense of Lisbon was implemented during World War II. It included a system of anti-aircraft, ground, coastal and maritime defenses. Parts of this system, namely its fortified coastal defense batteries remained partially active until the late 1990s.




= Sweden

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Karlsborg Fortress was conceived in 19th century Sweden to host the monarchy, government, parliament and gold reserves in time of war. Karlsborg was selected as Sweden's eastern coast and Stockholm became rather exposed after Sweden's loss of Finland in 1809.




Central Europe






= Germany

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The Alpine Fortress (German: Alpenfestung) was the World War II national redoubt planned by Heinrich Himmler in November/December 1943 for Germany's government and armed forces to retreat to an area from "southern Bavaria across western Austria to northern Italy". The plan was never fully endorsed by Hitler and no serious attempt was made to put the plan into operation. It did, however, serve as an effective propaganda tool and ruse of war in the closing months of the conflict, with considerable Allied resources diverted southwards towards the capture of the purported redoubt which ultimately turned out to be a phantom.




= Italy

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The Valtellina Redoubt (Ridotto Alpino Repubblicano, Republican Alpine Redoubt, or RAR) was intended to be a stronghold in the Valtellina, a valley in the Italian Alps, where the Italian fascist regime would make its last stand at the end of World War II. Because of a lack of planning and preparatory work, it was never used.




= Switzerland

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Swiss National Redoubt (Schweizer Alpenfestung or Réduit suisse) was a defensive plan developed by the Swiss government during World War II to respond to a possible German invasion, which had been planned but was never carried out.
The plan was in three stages: first, to hold an invading army on the border; second, if that failed, to launch a delaying war that would allow the bulk of Swiss forces to withdraw to a defensible perimeter in the Swiss Alps; and third, to defend that mountain stronghold.




= Austria

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During the Cold War, Austria developed a similar plan called Raumverteidigung (area defence). The plan was primarily directed against Hungary and Czechoslovakia (and later the entire Warsaw Pact) but it also included plans against an attack by NATO forces. The Austrian Armed Forces would retreat into key zones situated in the alpine region and defend it. They would also employ guerrilla warfare behind enemy lines and delay the enemy advance in the area's security zones.




Other regions






= China

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During the Second Sino-Japanese War in World War II, the city of Kunming was prepared as a national redoubt in case the temporary capital, Chongqing, fell. An elaborate system of caves to serve as offices, barracks and factories was prepared but never used.
Kunming was again slated to serve in this role in the renewed Chinese Civil War, but the Nationalist garrison changed sides and joined the Communists. Instead, Taiwan became the last redoubt and home of the Nationalist government, a role which continues to this day.




= Japan

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Towards the end of World War II, the Matsushiro Underground Imperial Headquarters were built in Nagano Prefecture. They were intended as a base from which the Japanese government could operate in case of an Allied invasion of the home islands. The base was partly completed by the time of Japan's surrender.




= Mandate of Palestine

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As German Afrika Korps forces proceeded eastward towards Egypt in the North African campaign of World War II, the Jewish community in Mandatory Palestine considered retreating into fortified positions at Haifa and the Mount Carmel region, were the German advance to reach them. The Palestine Post Occupation Scheme was a short-lived 1942 collaboration between the Jewish underground Palmach and the British Special Operations Executive, with training for the plan centered at the kibbutz Mishmar HaEmek, and Moshe Dayan to be put in charge of managing a clandestine radio network.
In Jewish underground circles, the plan was also variously called the "Plan for the North", "Masada on the Carmel", "Haifa-Tobruk", "Haifa-Masada-Musa-Dagh", or "Haifa Stronghold". The planners on the Palmach side were Yohanan Ratner and Yitzhak Sadeh. David Shaltiel (commander in Haifa at the time) and Yitzhak Gruenbaum were vocal supporters of a Masada-like stand, while Yigal Allon and others were skeptical of its usefulness. The evacuation of women and children to Cyprus was also considered.
The decisive British victory at the Second Battle of El Alamein soon afterward rendered the plan moot.




= Poland

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During the 1930s, assuming that Poland would be attacked only by Germany, the Polish forces were to make the last stand in the area of the Romanian Bridgehead. After the Battle of Bzura was over and even after the Soviet invasion of Poland, many Polish divisions kept on heading towards the Romanian Bridgehead. Beck's proposal to establish Lviv (Lwów) as the temporary capital of Poland, in the case of German attack, was rejected; possibly because Lviv was west of the Romanian Bridgehead.




= South Korea

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= Yugoslavia

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According to the "Total National Resistance" defense doctrine of Yugoslavia, a rugged highland area focused on central Bosnia (roughly, the Lašva Valley) was to function as a redoubt to which the Yugoslav People's Army would retreat in case of a Soviet or NATO invasion. Defense of the rest of the country was to be left to the guerrilla-warfare efforts of the Territorial Defense Forces. A network of industrial zones and fortified bases was developed in anticipation, including factories in boom cities like Zenica and an underground air force base at Željava and a command bunker complex intended for the use by Marshal Josip Broz Tito and the rest of the Yugoslav leadership.




See also






Notes






External links


US Army in WW II: The last Offensive Chapter XVIII: The Myth of the Redoubt




References

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• National redoubt
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