paragraph_text: There are three main chemical pulping processes: the sulfite process dates back to the 1840s and it was the dominant method extent before the second world war. The kraft process, invented in the 1870s and first used in the 1890s, is now the most commonly practiced strategy, one of its advantages is the chemical reaction with lignin, that produces heat, which can be used to run a generator. Most pulping operations using the kraft process are net contributors to the electricity grid or use the electricity to run an adjacent paper mill. Another advantage is that this process recovers and reuses all inorganic chemical reagents. Soda pulping is another specialty process used to pulp straws, bagasse and hardwoods with high silicate content.

paragraph_text: As of 29 February 2016, 124 countries were contributing a total of 105,314 personnel in Peacekeeping Operations, with Ethiopia leading the tally (8,324), followed by India (7,695) and Bangladesh (7,525). In June 2013. Pakistan contributed the highest number overall with 8,186 personnel, followed by India (7,878), Bangladesh (7,799), Ethiopia (6,502), Rwanda (4,686), Nigeria (4,684), Nepal (4,495), Jordan (3,374), Ghana (2,859), and Egypt (2,750). As of 28 February 2015, 120 countries were contributing a total of 104,928 personnel in Peacekeeping Operations, with Bangladesh leading the tally (9446). As of March 2008, in addition to military and police personnel, 5,187 international civilian personnel, 2,031 UN Volunteers and 12,036 local civilian personnel worked in UN peacekeeping missions.

paragraph_text: Petroleum was discovered on 3 March 1938 and followed up by several other finds in the Eastern Province. Saudi Arabia has since become the world's second largest oil producer (behind the US) and the world's largest oil exporter, controlling the world's second largest oil reserves and the sixth largest gas reserves. The kingdom is categorized as a World Bank high-income economy with a high Human Development Index and is the only Arab country to be part of the G-20 major economies. The state has attracted criticism for a variety of reasons including: its archaic treatment of women, its excessive and often extrajudicial use of capital punishment, state-sponsored discrimination against religious minorities and atheists, its role in the Yemeni Civil War, sponsorship of Islamic terrorists, and its strict interpretation of Sharia law. The kingdom has the world's third-highest military expenditure and, according to SIPRI, was the world's second largest arms importer from 2010 to 2014. Saudi Arabia is considered a regional and middle power. In addition to the GCC, it is an active member of the Organisation of Islamic Cooperation and OPEC.

paragraph_text: Eritrea is a member of the United Nations, the African Union, and is an observing member of the Arab League. The nation holds a seat on the United Nations' Advisory Committee on Administrative and Budgetary Questions (ACABQ). Eritrea also holds memberships in the International Bank for Reconstruction and Development, International Finance Corporation, International Criminal Police Organization (INTERPOL), Non-Aligned Movement, Organization for the Prohibition of Chemical Weapons, Permanent Court of Arbitration, and the World Customs Organization.

paragraph_text: The creation of modern-day Eritrea is a result of the incorporation of independent, distinct kingdoms and sultanates (for example, Medri Bahri and the Sultanate of Aussa) eventually resulting in the formation of Italian Eritrea. In 1947 Eritrea became part of a federation with Ethiopia, the Federation of Ethiopia and Eritrea. Subsequent annexation into Ethiopia led to the Eritrean War of Independence, ending with Eritrean independence following a referendum in April 1993. Hostilities between Eritrea and Ethiopia persisted, leading to the Eritrean–Ethiopian War of 1998–2000 and further skirmishes with both Djibouti and Ethiopia.

paragraph_text: Armenia is member of Collective Security Treaty Organisation (CSTO) along with Belarus, Kazakhstan, Kyrgyzstan, Russia, Tajikistan and Uzbekistan. It participates in NATO's Partnership for Peace (PiP) program and is in a NATO organisation called Euro-Atlantic Partnership Council (EAPC). Armenia has engaged in a peacekeeping mission in Kosovo as part of non-NATO KFOR troops under Greek command. Armenia also had 46 members of its military peacekeeping forces as a part of the Coalition Forces in Iraq War until October 2008.

paragraph_text: The Soviet Union suffered greatly in the war, losing around 27 million people. Approximately 2.8 million Soviet POWs died of starvation, mistreatment, or executions in just eight months of 1941 -- 42. During the war, the Soviet Union together with the United States, the United Kingdom and China were considered as the Big Four of Allied powers in World War II and later became the Four Policemen which was the foundation of the United Nations Security Council. It emerged as a superpower in the post-war period. Once denied diplomatic recognition by the Western world, the Soviet Union had official relations with practically every nation by the late 1940s. A member of the United Nations at its foundation in 1945, the Soviet Union became one of the five permanent members of the United Nations Security Council, which gave it the right to veto any of its resolutions.

paragraph_text: Geneva and the nearby French department of Ain co-host the world's largest laboratory, CERN, dedicated to particle physics research. Another important research center is the Paul Scherrer Institute. Notable inventions include lysergic acid diethylamide (LSD), the scanning tunneling microscope (Nobel prize) and Velcro. Some technologies enabled the exploration of new worlds such as the pressurized balloon of Auguste Piccard and the Bathyscaphe which permitted Jacques Piccard to reach the deepest point of the world's oceans.

paragraph_text: Even prior to the penetration of European interests, Southeast Asia was a critical part of the world trading system. A wide range of commodities originated in the region, but especially important were spices such as pepper, ginger, cloves, and nutmeg. The spice trade initially was developed by Indian and Arab merchants, but it also brought Europeans to the region. First Spaniards (Manila galleon) and Portuguese, then the Dutch, and finally the British and French became involved in this enterprise in various countries. The penetration of European commercial interests gradually evolved into annexation of territories, as traders lobbied for an extension of control to protect and expand their activities. As a result, the Dutch moved into Indonesia, the British into Malaya and parts of Borneo, the French into Indochina, and the Spanish and the US into the Philippines.

paragraph_text: Japan is a member of the ASEAN Plus mechanism, UN, the OECD, the G7, the G8, and the G20, and is considered a great power. Its economy is the world's third-largest by nominal GDP and the fourth-largest by purchasing power parity. It is also the world's fourth-largest exporter and fourth-largest importer.

paragraph_text: Petroleum refining in the United States in 2013 produced 18.9 million barrels per day of refined petroleum products, more than any other country. Although the US was the world's largest net importer of refined petroleum products as recently as 2008, the US became a net exporter in 2010, and in 2014 was the largest exporter and the largest net exporter of refined petroleum. As of January 2015, there were 137 operating refineries in the US, distributed among 30 states.

paragraph_text: The war is also known under other names, such as the Persian Gulf War, First Gulf War, Gulf War I, Kuwait War, First Iraq War or Iraq War, before the term ``Iraq War ''became identified instead with the 2003 Iraq War (also referred to in the US as`` Operation Iraqi Freedom''). The Iraqi Army's occupation of Kuwait that began 2 August 1990 was met with international condemnation and brought immediate economic sanctions against Iraq by members of the UN Security Council. US President George H.W. Bush deployed US forces into Saudi Arabia, and urged other countries to send their own forces to the scene. An array of nations joined the coalition, the largest military alliance since World War II. The great majority of the coalition's military forces were from the US, with Saudi Arabia, the United Kingdom and Egypt as leading contributors, in that order. Kuwait and Saudi Arabia paid around US $32 billion of the US $60 billion cost.

paragraph_text: The Space Race began on August 2, 1955, when the Soviet Union responded to the US announcement four days earlier of intent to launch artificial satellites for the International Geophysical Year, by declaring they would also launch a satellite ``in the near future ''. The Soviet Union beat the US to this, with the October 4, 1957, orbiting of Sputnik 1, and later beat the US to the first human in space, Yuri Gagarin, on April 12, 1961. The`` race'' peaked with the July 20, 1969, US landing of the first humans on the Moon with Apollo 11. The USSR tried but failed crewed lunar missions, and eventually canceled them and concentrated on Earth orbital space stations.

paragraph_text: In 1957 the Soviet Union launched the world's first artificial satellite, Sputnik 1. Since then, about 6,600 satellites from more than 40 countries have been launched. According to a 2013 estimate, 3,600 remained in orbit. Of those, about 1,000 were operational; while the rest have lived out their useful lives and become space debris. Approximately 500 operational satellites are in low - Earth orbit, 50 are in medium - Earth orbit (at 20,000 km), and the rest are in geostationary orbit (at 36,000 km). A few large satellites have been launched in parts and assembled in orbit. Over a dozen space probes have been placed into orbit around other bodies and become artificial satellites to the Moon, Mercury, Venus, Mars, Jupiter, Saturn, a few asteroids, a comet and the Sun.

paragraph_text: David Leslie (1797 – March 1, 1869) was an American missionary and pioneer in what became the state of Oregon. A native of New Hampshire, he joined Jason Lee as a missionary at the Methodist Mission in the Oregon Country in 1836. In that region he participated in the early movement to start a government and his home was used for some of these meetings. With the closing of the mission he became a founder of the city of Salem, Oregon, and board member of the Oregon Institute, which later became Willamette University.

paragraph_text: Andover Earth Station was one of the first satellite earth stations, located at Andover in the US state of Maine. It was built by AT&T in 1961 to communicate with the Telstar 1 satellite, the first direct relay communications satellite. It provided the first experimental satellite telephone and television service between North America and Europe. It was also used with the Relay satellite. The station was dismantled in the 1990s.

paragraph_text: During the Middle Ages, the Eritrea region was known as Medri Bahri ("sea-land"). The name Eritrea is derived from the ancient Greek name for Red Sea (Ἐρυθρὰ Θάλασσα Erythra Thalassa, based on the adjective ἐρυθρός erythros "red"). It was first formally adopted in 1890, with the formation of Italian Eritrea (Colonia Eritrea). The territory became the Eritrea Governorate within Italian East Africa in 1936. Eritrea was annexed by Ethiopia in 1953 (nominally within a federation until 1962) and an Eritrean Liberation Front formed in 1960. Eritrea gained independence following the 1993 referendum, and the name of the new state was defined as State of Eritrea in the 1997 constitution.[citation needed]

paragraph_text: Diante do Trono (; lit.: Before the Throne) is a Brazilian contemporary Christian music band formed in 1997 in the city of Belo Horizonte, in the Lagoinha Church. It is led by singer, songwriter and pastor Ana Paula Valadão. The group became popular in Brazil since the release of their first album in 1998: "Diante do Trono". However, it was from the "Águas Purificadoras" and "Preciso de Ti" albums that it acquired international recognition, becoming the largest worship ministry in Latin America and one of the world's three largest ministries of praise, worship and mission.

paragraph_text: Football and cycling are the most popular sports in Eritrea. In recent years, Eritrean athletes have also seen increasing success in the international arena. Zersenay Tadese, an Eritrean athlete, currently holds the world record in half marathon distance running. The Tour of Eritrea, a multi-stage international cycling event, is held annually throughout the country. The Eritrea national cycling team has experienced a lot of success, winning the continental cycling championship several years in a row. Six Eritrean riders have been signed to international cycling teams, including Natnael Berhane and Daniel Teklehaimanot. Berhane was named African Sportsman of the Year in 2013, ahead of footballers Yaya Touré and Didier Drogba, while Teklehaimanot became the first Eritrean to ride the Vuelta a España in 2012. In 2015 Teklehaimanot won the King of the Mountains classification in the Critérium du Dauphine. Teklehaimanot and fellow Eritrean Merhawi Kudus became the first black African riders to compete in the Tour de France when they were selected by the MTN–Qhubeka team for the 2015 edition of the race, where, on 9 July, Teklehaimanot became the first African rider to wear the polkadot jersey.

paragraph_text: The war is also known under other names, such as the Persian Gulf War, First Gulf War, Gulf War I, Kuwait War, First Iraq War or Iraq War, before the term ``Iraq War ''became identified instead with the 2003 Iraq War (also referred to in the US as`` Operation Iraqi Freedom''). The Iraqi Army's occupation of Kuwait that began 2 August 1990 was met with international condemnation and brought immediate economic sanctions against Iraq by members of the UN Security Council. Together with the UK's prime minister Margaret Thatcher (who had fiercely resisted the invasion by Argentina of the Falkland Islands a decade earlier), George Bush deployed US forces into Saudi Arabia, and urged other countries to send their own forces to the scene. An array of nations joined the coalition, forming the largest military alliance since World War II. The great majority of the coalition's military forces were from the US, with Saudi Arabia, the United Kingdom and Egypt as leading contributors, in that order. Kuwait and Saudi Arabia paid around US $32 billion of the US $60 billion cost.

Question: When was Eritrea annexed by country contributing the most to the peace keeping mission of the organization with the US and the inventor of first satellite as important members?
Answer: 1953