Type 45 240 Mm Howitzer
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Type 45 240 Mm Howitzer
The was a siege gun used by the Imperial Japanese Army during World War I and World War II. The Type 45 designation was given to this gun as it was accepted in the 45th year of Emperor Meiji's reign (1912).War Department Special Series No 25 ''Japanese Field Artillery'' October 1944 It was the first such weapon to be entirely designed in Japan.
Taki's Imperial Japanese Army page


History and development

The Type 45 was developed after the Russo-Japanese War showed the value of heavy caliber howitzers and Mortar (weapon), mortars when attacking strongly fortified enemy positions. The heavy weapons used by the Japanese Army at the Siege of Port Arthur were 28 cm Howitzer L/10, 28cm Imperial Japanese army howitzers. The Type 45 was the first such weapon designed and built entirely in Japan, and entered service in 1912. It w ...
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Siege Of Tsingtao
The siege of Tsingtao (or Tsingtau) was the attack on the German port of Tsingtao (now Qingdao) in China during World War I by Japan and the United Kingdom. The siege was waged against Imperial Germany between 27 August and 7 November 1914. The siege was the first encounter between Japanese and German forces, the first Anglo-Japanese operation of the war, and the only major land battle in the Asian and Pacific theatre during World War I. Background Throughout the late 19th and early 20th centuries, Germany joined other European powers in a scramble for colonial possessions. As with the other world powers (including the United States and Japan), Germany began to interfere in Chinese local affairs. After two German missionaries were killed in the Juye Incident in 1897, China was forced to agree to the Kiautschou Bay concession in Shantung (now Shandong) to Germany in 1898 on a 99-year lease. Germany then began to assert its influence across the rest of the province and built t ...
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Soviet Union
The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national republics; in practice, both its government and its economy were highly centralized until its final years. It was a one-party state governed by the Communist Party of the Soviet Union, with the city of Moscow serving as its capital as well as that of its largest and most populous republic: the Russian SFSR. Other major cities included Leningrad (Russian SFSR), Kiev (Ukrainian SSR), Minsk ( Byelorussian SSR), Tashkent (Uzbek SSR), Alma-Ata (Kazakh SSR), and Novosibirsk (Russian SFSR). It was the largest country in the world, covering over and spanning eleven time zones. The country's roots lay in the October Revolution of 1917, when the Bolsheviks, under the leadership of Vladimir Lenin, overthrew the Russian Provisional Government ...
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Manchukuo
Manchukuo, officially the State of Manchuria prior to 1934 and the Empire of (Great) Manchuria after 1934, was a puppet state of the Empire of Japan in Northeast China, Manchuria from 1932 until 1945. It was founded as a republic in 1932 after the Japanese invasion of Manchuria, and in 1934 it became a constitutional monarchy under the ''de facto'' control of Japan. It had limited Diplomatic recognition, international recognition. The area was the homeland of the Manchu people, Manchus, including the emperors of the Qing dynasty. In 1931, Japanese invasion of Manchuria, Japan seized the region following the Mukden Incident. A pro-Japanese government was installed one year later with Puyi, the List of emperors of the Qing dynasty, last Qing emperor, as the nominal regent and later emperor. Manchukuo's government was dissolved in 1945 after the Surrender of Japan, surrender of Imperial Japan at the End of World War II in Asia, end of World War II. The territories claimed by Manc ...
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Battle Of The Philippines (1941–42)
Battle of the Philippines may refer to several wars, military campaigns, and major battles which have been fought in the Philippine Islands, including: *Spanish conquest ** Battle of Bangkusay Channel ** 1582 Cagayan battles **Tondo Conspiracy ** Bankaw revolt ** Battle of Puerto de Cavite *Philippine revolts against Spain *The Philippine Revolution (1896–98), called the "Tagalog War" by the Spanish, a military conflict between the people of the Philippines and the Spanish colonial authorities **Battle of San Mateo and Montalban **Battle of San Francisco de Malabon **Battle of San Juan del Monte ** Kawit revolt **Battle of Sambat **Battle of Pateros ** Battle of Camalig **Battles of Batangas ** Battle of Talisay **Battle of Pasong Tamo **Battle of Imus **Battle of Binakayan-Dalahican **Battle of Kakarong de Sili **Battle of Perez Dasmariñas **Cry of Tarlac ** Battle of Zapote Bridge (1897) ** Battle of Calamba ** Battle of Tayabas ** Battle of Tres de Abril **Siege of Zamboanga ...
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Battle Of Corregidor
The Battle of Corregidor (; ), fought on May 5–6, 1942, was the culmination of the Japanese campaign for the conquest of the Commonwealth of the Philippines during World War II. The fall of Bataan on April 9, 1942, ended all organized opposition by the U.S. Army Forces Far East to the invading Japanese forces on Luzon, in the northern Philippines. The island bastion of Corregidor, with its network of tunnels and formidable array of defensive armaments, along with the fortifications across the entrance to Manila Bay, was the remaining obstacle to the 14th Japanese Imperial Army of Lieutenant General Masaharu Homma. Homma had to take Corregidor, since as long as the island remained in American hands, the Japanese would be denied the use of Manila Bay, the finest natural harbor in the Far East. The U.S. Army, however, then successfully recaptured the island in 1945. Background Gibraltar of the East Corregidor, officially named Fort Mills, was the largest of four fortified ...
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Battle Of Bataan
The Battle of Bataan ( tl, Labanan sa Bataan; January 7 – April 9, 1942) was fought by the United States and the Philippine Commonwealth against Japan during World War II. The battle represented the most intense phase of the Japanese invasion of the Philippines during World War II. In January 1942, forces of the Imperial Japanese Army and Navy invaded Luzon along with several islands in the Philippine Archipelago after the bombing of the American naval base at Pearl Harbor. The commander-in-chief of the U.S. and Filipino forces in the islands, General Douglas MacArthur, consolidated all of his Luzon-based units on the Bataan Peninsula to fight against the Japanese army. By this time, the Japanese controlled nearly all of Southeast Asia. The Bataan Peninsula and the island of Corregidor were the only remaining Allied strongholds in the region. Despite their lack of supplies, American and Filipino forces managed to fight the Japanese for three months, engaging them initiall ...
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British Army
The British Army is the principal land warfare force of the United Kingdom, a part of the British Armed Forces along with the Royal Navy and the Royal Air Force. , the British Army comprises 79,380 regular full-time personnel, 4,090 Gurkhas, and 28,330 volunteer reserve personnel. The modern British Army traces back to 1707, with antecedents in the English Army and Scots Army that were created during the Restoration in 1660. The term ''British Army'' was adopted in 1707 after the Acts of Union between England and Scotland. Members of the British Army swear allegiance to the monarch as their commander-in-chief, but the Bill of Rights of 1689 and Claim of Right Act 1689 require parliamentary consent for the Crown to maintain a peacetime standing army. Therefore, Parliament approves the army by passing an Armed Forces Act at least once every five years. The army is administered by the Ministry of Defence and commanded by the Chief of the General Staff. The Brit ...
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Battle Of Hong Kong
The Battle of Hong Kong (8–25 December 1941), also known as the Defence of Hong Kong and the Fall of Hong Kong, was one of the first battles of the Pacific War in World War II. On the same morning as the attack on Pearl Harbor, forces of the Empire of Japan attacked the British Crown colony of Hong Kong, without declaring war against the British Empire. The Hong Kong garrison consisted of British, Indian and Canadian units, also the Auxiliary Defence Units and Hong Kong Volunteer Defence Corps (HKVDC). Within a week the defenders abandoned the 2 of the 3 territories of Hong Kong ( Kowloon and New Territories) on the mainland, and less than two weeks later, with their last territory Hong Kong Island untenable, the colony surrendered. Background Britain first thought of Japan as a threat with the ending of the Anglo-Japanese Alliance in 1921, a threat that increased throughout the 1930s with the escalation of the Second Sino-Japanese War. On 21 October 1938 the Japanese occup ...
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Imperial German Army
The Imperial German Army (1871–1919), officially referred to as the German Army (german: Deutsches Heer), was the unified ground and air force of the German Empire. It was established in 1871 with the political unification of Germany under the leadership of Prussia, and was dissolved in 1919, after the defeat of the German Empire in World War I (1914–1918). In the Federal Republic of Germany, the term ' identifies the German Army, the land component of the '. Formation and name The states that made up the German Empire contributed their armies; within the German Confederation, formed after the Napoleonic Wars, each state was responsible for maintaining certain units to be put at the disposal of the Confederation in case of conflict. When operating together, the units were known as the Federal Army ('). The Federal Army system functioned during various conflicts of the 19th century, such as the First Schleswig War from 1848–50 but by the time of the Second Schleswig War ...
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Battle Of Tsingtao
The siege of Tsingtao (or Tsingtau) was the attack on the German port of Tsingtao (now Qingdao) in China during World War I by Japan and the United Kingdom. The siege was waged against Imperial Germany between 27 August and 7 November 1914. The siege was the first encounter between Japanese and German forces, the first Anglo-Japanese operation of the war, and the only major land battle in the Asian and Pacific theatre during World War I. Background Throughout the late 19th and early 20th centuries, Germany joined other European powers in a scramble for colonial possessions. As with the other world powers (including the United States and Japan), Germany began to interfere in Chinese local affairs. After two German missionaries were killed in the Juye Incident in 1897, China was forced to agree to the Kiautschou Bay concession in Shantung (now Shandong) to Germany in 1898 on a 99-year lease. Germany then began to assert its influence across the rest of the province and buil ...
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Interrupted Screw
Breech from Russian 122 mm M1910 howitzer, modified and combined with 105 mm H37 howitzer barrel An interrupted screw or interrupted thread is a mechanical device typically used in the breech of artillery guns. It is believed to have been invented in 1845. The system has also been used to close other applications, including the joint between helmet (bonnet) and breastplate (corselet) of standard diving suit helmets, and the locks of diving chambers. Design An interrupted screw has a section of thread along its axis removed. The screw is mated with a partially threaded hole in the receptacle: threadless channels in the breechblock screw line up with the threaded parts of the screw, and vice versa. The screw can thus be smoothly inserted all the way into the receptacle, after which as little as one-eighth of a turn can engage the two sets of threads securely, sealing the joint. The amount of rotation required to achieve full closure depends on the number of unthread ...
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