Siegfried Line campaignThe Siegfried Line campaign was a phase in the Western European campaign of World War II, which involved actions near the German defensive Siegfried Line. This phase spanned from the end of the Battle of Normandy, or Operation Overlord and the pursuit across northern France, which ended on 15 September 1944, and concluded with the opening of the German Ardennes counteroffensive, better known as the Battle of the Bulge. Broad front versus narrow front controversy in World War II German forces had been routed during the Allied break-out from Normandy.
CasemateA casemate is a fortified gun emplacement or armored structure from which guns are fired, in a fortification, warship, or armoured fighting vehicle. When referring to antiquity, the term "casemate wall" means a double city wall with the space between the walls separated into chambers, which could be filled up to better withstand battering rams in case of siege (see Antiquity: casemate wall). In its original early modern meaning, the term referred to a vaulted chamber in a fort, which may have been used for storage, accommodation, or artillery which could fire through an opening or embrasure.
Czechoslovak border fortificationsCzechoslovakia built a system of border fortifications as well as some fortified defensive lines inland, from 1935 to 1938 as a defensive countermeasure against the rising threat of Nazi Germany. The objective of the fortifications was to prevent the taking of key areas by an enemy—not only Germany but also Hungary and Poland—by means of a sudden attack before the mobilization of the Czechoslovak Army could be completed, and to enable effective defense until allies—Britain and France, and possibly the Soviet Union—could help.
German invasion of the NetherlandsThe German invasion of the Netherlands (Duitse aanval op Nederland), otherwise known as the Battle of the Netherlands (Slag om Nederland), was a military campaign part of Case Yellow (Fall Gelb), the Nazi German invasion of the Low Countries (Belgium, Luxembourg, and the Netherlands) and France during World War II. The battle lasted from 10 May 1940 until the surrender of the main Dutch forces on 14 May. Dutch troops in the province of Zeeland continued to resist the Wehrmacht until 17 May, when Germany completed its occupation of the whole country.
Czech hedgehogThe Czech hedgehog (rozsocháč or ježek) is a static anti-tank obstacle defense made of metal angle beams or I-beams (that is, lengths with an L- or Ɪ-shaped cross section). It is similar in shape (and design) to a much larger version of metal knucklebones or caltrops. The hedgehog is very effective in keeping light to medium tanks and vehicles from penetrating a line of defense; it maintains its function even when tipped over by a nearby explosion.
BunkerA bunker is a defensive military fortification designed to protect people and valued materials from falling bombs, artillery, or other attacks. Bunkers are almost always underground, in contrast to blockhouses which are mostly above ground. They were used extensively in World War I, World War II, and the Cold War for weapons facilities, command and control centers, and storage facilities. Bunkers can also be used as protection from tornadoes. Trench bunkers are small concrete structures, partly dug into the ground.
Battle of the BulgeThe Battle of the Bulge, also known as the Ardennes Offensive, was the last major German offensive campaign on the Western Front during World War II. The battle lasted for five weeks from 16 December 1944 to 28 January 1945, towards the end of the war in Europe. It was launched through the densely forested Ardennes region between Belgium and Luxembourg. It overlapped with the Alsace Offensive, subsequently the Colmar Pocket, another series of battles launched by the Germans in support of the Ardennes thrust.
Gerd von RundstedtKarl Rudolf Gerd von Rundstedt (12 December 1875 – 24 February 1953) was a German field marshal in the Heer (Army) of Nazi Germany during World War II. Born into a Prussian family with a long military tradition, von Rundstedt entered the Prussian Army in 1892. During World War I, he served mainly as a staff officer. In the inter-war years, he continued his military career, reaching the rank of Colonel General (Generaloberst) before retiring in 1938. He was recalled at the beginning of World War II as commander of Army Group South in the invasion of Poland.
Adolf HitlerAdolf Hitler (ˈaːdɔlf ˈhɪtlɐ; 20 April 1889 - 30 April 1945) was an Austrian-born German politician who was the dictator of Germany from 1933 until his suicide in 1945. He rose to power as the leader of the Nazi Party, becoming the chancellor in 1933 and then taking the title of Führer und Reichskanzler in 1934. During his dictatorship, he initiated World War II in Europe by invading Poland on 1 September 1939. He was closely involved in military operations throughout the war and was central to the perpetration of the Holocaust, the genocide of about six million Jews and millions of other victims.
Atlantic WallThe Atlantic Wall (Atlantikwall) was an extensive system of coastal defences and fortifications built by Nazi Germany between 1942 and 1944 along the coast of continental Europe and Scandinavia as a defence against an anticipated Allied invasion of Nazi-occupied Europe from the United Kingdom, during World War II. The manning and operation of the Atlantic Wall was administratively overseen by the German Army, with some support from Luftwaffe ground forces.