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Lạng Sơn
Lạng Sơn () is a city in far northern Vietnam, which is the capital of Lạng Sơn Province. It is accessible by road and rail from Hanoi, the Vietnamese capital, and it is the northernmost point on National Route 1. History Due to its geography as Vietnam's gateway to China, Lạng Sơn and its ancient citadel have been in the path of many invasions, and were the site of three French defeats during the colonial era. Occupied by Qing forces during the military buildup that preceded the Sino-French War, the city was occupied by France after the two-week Lạng Sơn Campaign in February 1885. However, the brigade there conducted a hasty retreat after a failed attack at the Battle of Bang Bo into China; the " retreat from Lạng Sơn" became the most controversial aspect of the war and led to the fall of Jules Ferry's ministry. Outnumbered French colonial forces clashed with the Japanese 5th Division in the Battle of Lạng Sơn during the Japanese Vietnam Expedition on 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Provincial City (Vietnam)
Provincial city ( vi, Thành phố thuộc tỉnh), commonly known as City, a type of second tier subdivision of Vietnam is divided into 713 units along with List of urban districts of Vietnam, urban district, District (Vietnam), district, Municipal city (Vietnam), municipal city, and district-level town (Vietnam), town have equal status. Also by virtue of Decree No. 42/2009/ND-CP, city are officially classified into Class-1, Class-2 or Class-3. The cities can only subordinate to Province as the Second Tier unit. At the Third Tier, City is divided into Ward (Vietnam), wards and Commune (Vietnam), communes. Fact Cities are usually provincial urban and administrative centers. Some cities also was appointed provincial economic centers and the culture center of a region (between provinces). There might still agricultural population in the suburban of provincial cities. Provincial cities are divided into Ward (Vietnam), wards (within the inner city) and Commune (Vietnam), communes (w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific War
The Pacific War, sometimes called the Asia–Pacific War, was the Theater (warfare), theater of World War II that was fought in Asia, the Pacific Ocean, the Indian Ocean, and Oceania. It was geographically the largest theater of the war, including the vast Pacific Ocean theatre of World War II, Pacific Ocean theater, the South West Pacific theatre of World War II, South West Pacific theater, the Second Sino-Japanese War, and the Soviet–Japanese War. The Second Sino-Japanese War between the Empire of Japan and the Republic of China (1912–49), Republic of China had been in progress since 7 July 1937, with hostilities dating back as far as 19 September 1931 with the Japanese invasion of Manchuria. However, it is more widely accepted that the Pacific War itself began on 7 December (8 December Japanese time) 1941, when the Japanese simultaneously Japanese invasion of Thailand, invaded Thailand, attacked the British colonies of Malayan Campaign, Malaya, Battle of Singapore, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pingxiang, Guangxi
Pingxiang () is a county-level city under the administration of the prefecture-level city of Chongzuo, in the southwest of the Guangxi Zhuang Autonomous Region, China. Situation The city covers an area of . It is bordered in the north by Longzhou County and in the east by Ningming County, both in Chongzuo, and in the south and west by Vietnam's Lạng Sơn Province. National Route 322 comes through the city centre, as does the railway which continues on to Hanoi; a high-speed expressway, now also international, passes nearby. Zhennan Pass, site of the Battle of Bang Bo during the Sino-French War The Sino-French War (, french: Guerre franco-chinoise, vi, Chiến tranh Pháp-Thanh), also known as the Tonkin War and Tonquin War, was a limited conflict fought from August 1884 to April 1885. There was no declaration of war. The Chinese arm ..., is now named the "Friendship Pass" and is considered the gateway to Vietnam. There are also plans to build a high-speed rail ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subtropical Climate
The subtropical zones or subtropics are geographical and climate zones to the north and south of the tropics. Geographically part of the temperate zones of both hemispheres, they cover the middle latitudes from to approximately 35° north and south. The horse latitudes lie within this range. Subtropical climates are often characterized by hot summers and mild winters with infrequent frost. Most subtropical climates fall into two basic types: humid subtropical ( Koppen climate Cfa), where rainfall is often concentrated in the warmest months, for example Southeast China and the Southeastern United States, and dry summer or Mediterranean climate ( Koppen climate Csa/Csb), where seasonal rainfall is concentrated in the cooler months, such as the Mediterranean Basin or Southern California. Subtropical climates can also occur at high elevations within the tropics, such as in the southern end of the Mexican Plateau and in Da Lat of the Vietnamese Central Highlands. The six cli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Vietnam
Northern Vietnam ( vi, Bắc Bộ) is one of three geographical regions within Vietnam. It consists of three administrative regions: the Northwest (Vùng Tây Bắc), the Northeast (Vùng Đông Bắc), and the Red River Delta (Đồng Bằng Sông Hồng). It has a total area of about 109,942.9 km2. ''Tonkin'' is a historical exonym for this region plus the Thanh-Nghệ region. Of the three geographical regions, the oldest is Northern Vietnam, where the Vietnamese culture originated over 2,000 years ago in the Red River Delta, though Vietnamese people eventually spread south into the Mekong Delta. Administration Northern Vietnam includes three administrative regions, which in turn comprises 25 First Tier units. Municipality (thành phố trực thuộc trung ương) Of all 25 First Tier units, two are municipalities and 23 are provinces. See also * Northern, Central and Southern Vietnam * Tonkin Tonkin, also spelled ''Tongkin'', ''Tonquin'' or ''Tongking'', is an exon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Felsic
In geology, felsic is a modifier describing igneous rocks that are relatively rich in elements that form feldspar and quartz.Marshak, Stephen, 2009, ''Essentials of Geology,'' W. W. Norton & Company, 3rd ed. It is contrasted with mafic rocks, which are relatively richer in magnesium and iron. Felsic refers to silicate minerals, magma, and rocks which are enriched in the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium. Felsic magma or lava is higher in viscosity than mafic magma/lava. Felsic rocks are usually light in color and have specific gravities less than 3. The most common felsic rock is granite. Common felsic minerals include quartz, muscovite, orthoclase, and the sodium-rich plagioclase feldspars (albite-rich). Terminology In modern usage, the term ''acid rock'', although sometimes used as a synonym, normally now refers specifically to a high-silica-content (greater than 63% SiO2 by weight) volcanic rock, such as rhyolite. Older, broader usage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flyschoid
Flysch () is a sequence of sedimentary rock layers that progress from deep-water and turbidity flow deposits to shallow-water shales and sandstones. It is deposited when a deep basin forms rapidly on the continental side of a mountain building episode. Examples are found near the North American Cordillera, the Alps, the Pyrenees and the Carpathians. Sedimentological properties Flysch consists of repeated sedimentary cycles with upwards fining of the sediments. There are sometimes coarse conglomerates or breccias at the bottom of each cycle, which gradually evolve upwards into sandstone and shale/mudstone. Flysch typically consists of a sequence of shales rhythmically interbedded with thin, hard, graywacke-like sandstones. Typically the shales do not contain many fossils, while the coarser sandstones often have fractions of micas and glauconite. Tectonics In a continental collision, a subducting tectonic plate pushes on the plate above it, making the rock fold, often to the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triassic
The Triassic ( ) is a geologic period and system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago (Mya), to the beginning of the Jurassic Period 201.36 Mya. The Triassic is the first and shortest period of the Mesozoic Era. Both the start and end of the period are marked by major extinction events. The Triassic Period is subdivided into three epochs: Early Triassic, Middle Triassic and Late Triassic. The Triassic began in the wake of the Permian–Triassic extinction event, which left the Earth's biosphere impoverished; it was well into the middle of the Triassic before life recovered its former diversity. Three categories of organisms can be distinguished in the Triassic record: survivors from the extinction event, new groups that flourished briefly, and other new groups that went on to dominate the Mesozoic Era. Reptiles, especially archosaurs, were the chief terrestrial vertebrates during this time. A specialized subgroup of arch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Permian
The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last period of the Paleozoic Era; the following Triassic Period belongs to the Mesozoic Era. The concept of the Permian was introduced in 1841 by geologist Sir Roderick Murchison, who named it after the region of Perm in Russia. The Permian witnessed the diversification of the two groups of amniotes, the synapsids and the sauropsids ( reptiles). The world at the time was dominated by the supercontinent Pangaea, which had formed due to the collision of Euramerica and Gondwana during the Carboniferous. Pangaea was surrounded by the superocean Panthalassa. The Carboniferous rainforest collapse left behind vast regions of desert within the continental interior. Amniotes, which could better cope with these drier conditions, rose to dominance in place of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sino-Vietnamese War
The Sino-Vietnamese War (also known by #Names, other names) was a border war fought between China and Vietnam in early 1979. China launched an offensive in response to Vietnam's Cambodian–Vietnamese War, actions against the Khmer Rouge in 1978, which ended the rule of the Chinese-backed Khmer Rouge. Both China and Vietnam claimed victory in the last of the Indochina Wars. Chinese forces invaded northern Vietnam and captured several cities near the China-Vietnam border, border. On 6 March 1979, China declared that the gate to Hanoi was open and that their punitive mission had been achieved. Chinese troops then withdrew from Vietnam. As Vietnamese troops remained in Cambodia until 1989, China was unsuccessful in its goal of dissuading Vietnam from involvement in Cambodia. Following the dissolution of the Soviet Union in 1991, the Sino-Vietnamese border was finalized. Although unable to deter Vietnam from ousting Pol Pot from Cambodia, China demonstrated that its Cold War commu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battle Of Lang Son (1979)
A battle is an occurrence of combat in warfare between opposing military units of any number or size. A war usually consists of multiple battles. In general, a battle is a military engagement that is well defined in duration, area, and force commitment. An engagement with only limited commitment between the forces and without decisive results is sometimes called a skirmish. The word "battle" can also be used infrequently to refer to an entire operational campaign, although this usage greatly diverges from its conventional or customary meaning. Generally, the word "battle" is used for such campaigns if referring to a protracted combat encounter in which either one or both of the combatants had the same methods, resources, and strategic objectives throughout the encounter. Some prominent examples of this would be the Battle of the Atlantic, Battle of Britain, and Battle of Stalingrad, all in World War II. Wars and military campaigns are guided by military strategy, whereas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
