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Static War Headquarters Castlegate is a NATO command and communications bunker located approximately 2 km north-east of the town of Linnich, Germany. SWHQ Castlegate is operated in caretaker status for Allied Joint Force Command Brunssum by a German military contingent.

Ellebach is a river of North Rhine-Westphalia, Germany. It flows into the Rur near Jülich.

Linnich is a town in the district of Düren in the state of North Rhine-Westphalia, Germany. It is located on the River Rur (Roer river), approx. 10 km north-west of Jülich.

The Merzbach is a small river located in North Rhine-Westphalia, western Germany.

The Jülich shortwave transmitter, operated by Deutsche Telekom / T-Systems, was a part of the shortwave broadcasting facility at Jülich, Germany. In 1956 WDR broadcaster established the first shortwave transmitter near Mersch, and in subsequent years this site was expanded. On 1 September 1961 this site was handed over to the Deutsche Bundespost (German Federal Post) to establish the German foreign broadcasting service, "Deutsche Welle". In time 10 transmitters of 100 kilowatts were installed. These were transmitting antennas with enormous dipole arrays between free-standing steel framework towers which were installed. Today these transmitters are rented predominantly to non-German broadcasting organisations. In the 1990s a mediumwave transmitter was installed on the site, using a long wire antenna which is spun at a tower on the transmitter site. It was intended to be used for transmission of the programmes of "Radio Viva" on 702 kHz, but it never went into regular service for this broadcaster. Since 6 December 2004, the mediumwave transmitter has been used to broadcast the programme of the German commercial broadcaster "TruckRadio" on 702 kHz. In 2006, the British multi-millionaire Bob Edmiston from West Bromwich, acquired the entire transmitter. The car dealer and founder of the Christian missionary vision is regarded as creationist and had, amongst other things, bought a radio transmitter in Darwin, Australia 6 years ago. In January 2008 the broadcasting facility was sold by T-Systems to the religious broadcaster CVC / Christian Vision. When the broadcasting had been discontinued a recreation area with camping and hotels was to be built there.Meanwhile, all antennas have been removed.

The Duchy of Jülich (German: Herzogtum Jülich; Dutch: Hertogdom Gulik; French: Duché de Juliers) comprised a state within the Holy Roman Empire from the 11th to the 18th centuries. The duchy lay west of the Rhine river and was bordered by the Electorate of Cologne to the east and the Duchy of Limburg to the west. It had territories on both sides of the river Rur, around its capital Jülich – the former Roman Iuliacum – in the lower Rhineland. The duchy amalgamated with the County of Berg beyond the Rhine in 1423, and from then on also became known as Jülich-Berg. Later it became part of the United Duchies of Jülich-Cleves-Berg. Its territory lies in present-day Germany (part of North Rhine-Westphalia) and in the present-day Netherlands (part of the Limburg province), its population sharing the same Limburgish dialect.

The siege of Jülich was a major operation in the second phase of the Eighty Years' War that took place from 5 September 1621 to 3 February 1622. A few months after the Twelve Years' Truce between the Dutch Republic and the Spanish Monarchy expired, the Spanish Army of Flanders, led by the Genoese nobleman Ambrogio Spinola, went on the offensive against the Republic and approached the Rhine river to mask its true intentions: laying siege to the town of Jülich, which the Dutch States Army had occupied in 1610 during the War of the Jülich Succession. Although the capture of the town would not allow for a Spanish invasion of the Republic, its location between the Rhine and Meuse rivers rendered it strategically significant for both sides, given that the United Provinces greatly benefited from the river trade with the neighboring neutral states and Spain was pursuing a strategy of blockading the waterways which flowed across the Republic to ruin its economy. The siege operations were undertaken by a relatively small force under Count Hendrik van den Bergh, a Catholic cousin of Prince Maurice of Orange, while the Spanish main army under Spinola took positions along the neighboring Duchy of Cleves to prevent the States Army under Maurice to relieve Jülich. Located far away from the Dutch border, the town had strong defenses and was well garrisoned by a force under Frederik Pithan. Spinola therefore ordered a blockade to starve the defenders while they were submitted to regular bombardments. Pithan launched several sorties over the siege works, but they achieved little. An attempt by Maurice to sneak some troops across the Spanish lines also failed. In January 1622, the defenders, decimated by hunger and cold, surrendered to Van den Bergh. During 1622 and 1623, the Spanish Army completely evicted the Dutch troops from the rest of the Duchy of Jülich, as well as from the towns and castles that they held in Westphalia. Though the river blockade was ultimately unsuccessful, Jülich remained in Spanish control until 1660, and the Catholic victory was celebrated by artworks commissioned by the Spanish Crown and the Spinola family. Additionally, it was reported while it was ongoing by the fledgling press of the Northern and Southern Netherlands.

Jülich (German pronunciation: [ˈjyːlɪç] ; in old spellings also known as Guelich or Gülich, Dutch: Gulik, French: Juliers, Ripuarian: Jöllesch) is a town in the district of Düren, in the federal state of North Rhine-Westphalia, Germany. As a border region between the competing powers in the Lower Rhine and Meuse areas, the town and the Duchy of Jülich played a historic role from the Middle Ages up to the 17th century.

Aldenhoven (German pronunciation: [ˈaldn̩hoːfn̩]) is a municipality in the district of Düren in the state of North Rhine-Westphalia, Germany. It is located approximately 5 km south-west of Jülich, 5 km north of Eschweiler and 20 km north-east of Aachen.

The Battle of Aldenhoven (1 March 1793) saw the Habsburg Austrian army commanded by Prince Josias of Saxe-Coburg-Saalfeld attack a Republican French force under René Joseph de Lanoue. The Austrians successfully crossed the Roer River and engaged in a cavalry charge led by Archduke Charles, Duke of Teschen which routed the French and inflicted heavy losses. The War of the First Coalition battle occurred near Aldenhoven, a city in North Rhine-Westphalia, Germany located about 55 kilometres (34 mi) west of Cologne. After a victory in the Battle of Jemappes on 6 November 1792, the French army of Charles Francois Dumouriez conquered most of the Austrian Netherlands. That winter, Dumouriez attempted to overrun the Dutch Republic while Francisco de Miranda besieged Maastricht, covered by Lanoue's troops along the Roer. Sent by the Austrian government to reconquer Belgium, Coburg's troops attacked early on the morning of 1 March and dispersed the French. The Battle of Neerwinden on the 18th of March would decide who controlled the Austrian Netherlands.

The Battle of Aldenhoven or Battle of the Roer (2 October 1794) saw a Republican French army commanded by Jean Baptiste Jourdan defeat a Habsburg army under François Sébastien Charles Joseph de Croix, Count of Clerfayt which was defending the line of the Roer River. A key crossing was won by the French right wing at Düren after heavy fighting. The Austrian retreat from the Roer conceded control of the west bank of the Rhine River to France. The battle occurred during the War of the First Coalition, part of a wider conflict called the Wars of the French Revolution. Aldenhoven is located in the state of North Rhine-Westphalia in Germany about 21 kilometres (13 mi) northeast of Aachen.

Hückelhoven-Baal station is in the Hückelhoven district of Baal in the German state of North Rhine-Westphalia on the Aachen–Mönchengladbach railway. It is classified by Deutsche Bahn as a category 5 station. With its construction as an interchange station on two levels, it became important as a hub for passenger services, but in recent years it has lost this significance due to the closure of the adjacent section of the Jülich–Dalheim railway. Meanwhile, the passenger station has been reclassified as a halt and it was renamed as Hückelhoven-Baal in 2002. Baal freight yard still exists.