Please answer the following question: Information: - On September 14 , 2008 , Movement for the Emancipation of the Niger Delta ( MEND ) inaugurated Operation Hurricane Barbarossa with an ongoing string of militant attacks to bring down the oil industry in Rivers State . On September 27 , a week after declaring an oil war and sustaining heavy losses at the hands of the Nigerian armed forces , the group declared a ceasefire starting the next until '' further notice . '' - The Federal Republic of Nigeria , commonly referred to as Nigeria, is a federal republic in West Africa, bordering Benin in the west, Chad and Cameroon in the east, and Niger in the north. Its coast in the south lies on the Gulf of Guinea in the Atlantic Ocean. It comprises 36 states and the Federal Capital Territory, where the capital, Abuja is located. Its largest cities include: Lagos, Kano, Ibadan, Benin City and Port Harcourt. Nigeria is officially a democratic secular country. - Etche is a Local Government Area (LGA) in Rivers State, Nigeria, named after the Etche (Echie) people of Southern Nigeria. They also inhabit Omuma LGA; Etche/Omuma is a National Assembly constituency. - Guerrilla warfare is a form of irregular warfare in which a small group of combatants such as paramilitary personnel, armed civilians, or irregulars use military tactics including ambushes, sabotage, raids, petty warfare, hit-and-run tactics, and mobility to fight a larger and less-mobile traditional military. - The Economist is an English-language weekly magazine-format newspaper owned by the Economist Group and edited at offices in London. Continuous publication began under its founder, James Wilson, in September 1843. In 2015 its average weekly circulation was a little over 1.5 million, about half of which were sold in the United States. - Okrika is a port town in Rivers State, Nigeria, capital of the Local Government Area of the same name. The town is situated on a small island just south of Port Harcourt, making it a suburb of the much larger city. - The Niger Delta is the delta of the Niger River sitting directly on the Gulf of Guinea on the Atlantic Ocean in Nigeria. It is typically considered to be located within nine coastal southern Nigerian states, which include: all six states from the South South geopolitical zone, one state (Ondo) from South West geopolitical zone and two states (Abia and Imo) from South East geopolitical zone. Of all the states that the region covers, only Cross River is not an oil-producing state. - The current conflict in the Niger Delta first arose in the early 1990s over tensions between foreign oil corporations and a number of the Niger Delta's minority ethnic groups who feel they are being exploited, particularly the Ogoni and the Ijaw. Ethnic and political unrest has continued throughout the 1990s despite the conversion to democracy and the election of the Obasanjo government in 1999. Competition for oil wealth has fueled violence between ethnic groups, causing the militarization of nearly the entire region by ethnic militia groups, Nigerian military and police forces, notably the Nigerian Mobile Police. - Rivers State, also known simply as Rivers, is one of the 36 states of Nigeria. According to census data released in 2006, the state has a population of 5,185,400, making it the sixth-most populous state in the country. Its capital, Port Harcourt is the largest city and is economically significant as the centre of Nigeria's oil industry. Rivers State is bounded on the South by the Atlantic Ocean, to the North by Imo, Abia and Anambra States, to the East by Akwa Ibom State and to the West by Bayelsa and Delta states. It is home to many indigenous ethnic groups: Ikwerre, Ibani, Opobo, Eleme, Okrika, and Kalabari, Etche, Ogba, Ogoni, Engenni, Obolo and others. The people from Rivers State are known as "Riverians". - Port Harcourt (Igbo: Igucha; Pidgin: "Po-ta-kot") is the capital and largest city of Rivers State, Nigeria. It lies along the Bonny River and is located in the Niger Delta. As of 2016, the Port Harcourt urban area has an estimated population of 1,865,000 inhabitants, up from 1,382,592 as of 2006. - A corporation is a company or group of people authorized to act as a single entity (legally a person) and recognized as such in law. Early incorporated entities were established by charter (i.e. by an "ad hoc" act granted by a monarch or passed by a parliament or legislature). Most jurisdictions now allow the creation of new corporations through registration. - The Movement for the Emancipation of the Niger Delta (MEND) is one of the largest militant groups in the Niger Delta region of Nigeria. The organization claims to expose exploitation and oppression of the people of the Niger Delta and devastation of the natural environment by public-private partnerships between the Federal Government of Nigeria and corporations involved in the production of oil in the Niger Delta. "The Economist" has described the organization as one that "portrays itself as political organisation that wants a greater share of Nigeria's oil revenues to go to the impoverished region that sits atop the oil. In fact, it is more of an umbrella organisation for several armed groups, which it sometimes pays in cash or guns to launch attacks." MEND has been linked to attacks on petroleum operations in Nigeria as part of the Conflict in the Niger Delta, engaging in actions including sabotage, theft, property destruction, guerrilla warfare, and kidnapping. - The Atlantic Ocean is the second largest of the world's oceans with a total area of about . It covers approximately 20 percent of the Earth's surface and about 29 percent of its water surface area. It separates the "Old World" from the "New World". - Petroleum (from : "rock" + "oleum": "oil". ) is a naturally occurring, yellow-to-black liquid found in geological formations beneath the Earth's surface, which is commonly refined into various types of fuels. Components of petroleum are separated using a technique called fractional distillation. After reading the paragraphs above, choose the best answer for the entity that related to 'hurricane barbarossa' with the relationship of 'instance of'. Choices: - 1 - census - city - company - competition - conflict - corporation - country - data - environment - federal capital - format - government - guerrilla warfare - gulf - industry - language - law - legislature - liquid - local government - magazine - military - militia - monarch - name - natural environment - number - ocean - organization - paramilitary - part - people - person - pidgin - police - port - production - public - region - republic - river - rock - sabotage - september - single - state - suburb - surface - territory - town - urban area
A:
conflict