Question: When did the country Ella Kalsbeek was born refuse to surrender Namibia?

full_context: Document 1: Eswatini: In 1903, after British victory in the Anglo-Boer war, Swaziland became a British protectorate. Much of its early administration (for example, postal services) being carried out from South Africa until 1906 when the Transvaal colony was granted self-government. Following this, Swaziland was partitioned into European and non-European (or native reserves) areas with the former being two-thirds of the total land. Sobhuza's official coronation was in December 1921 after the regency of Labotsibeni after which he led an unsuccessful deputation to the Privy council in London in 1922 regarding the issue of the land.
Document 2: Boschmanskop No 1 Dam: Boschmanskop No 1+2 Dam, is an earth-fill type dam on the Woes-Alleen River, near Middelburg, Mpumalanga, South Africa. It was established in 1995. Its primary purpose is flood control and it is owned by Optimum Colliery Pullen's Hope.
Document 3: Kwena Dam: Kwena Dam is a combined gravity & arch type dam located on the Crocodile River, near Lydenburg, Mpumalanga province, South Africa. It was established in 1984 and it serves mainly for irrigation purposes. The hazard potential of the dam has been ranked high (3).
Document 4: Molteno Dam: Molteno Dam is a small but historic dam, on the lower slopes of Table Mountain in Western Cape, South Africa. Still in service, it was established in 1877 and is now located in the suburb of Oranjezicht, Cape Town.
Document 5: University of Chicago: Notable alumni in the field of government and politics include the founder of modern community organizing Saul Alinsky, Obama campaign advisor and top political advisor to President Bill Clinton David Axelrod, Attorney General and federal judge Robert Bork, Attorney General Ramsey Clark, Prohibition agent Eliot Ness, Supreme Court Justice John Paul Stevens, Prime Minister of Canada William Lyon Mackenzie King, 11th Prime Minister of Poland Marek Belka, Governor of the Bank of Japan Masaaki Shirakawa, the first female African-American Senator Carol Moseley Braun, United States Senator from Vermont and 2016 Democratic Presidential Candidate Bernie Sanders, and former World Bank President Paul Wolfowitz.
Document 6: Judith Merkies: Judith Merkies graduated with a law degree from the University of Amsterdam and pursued a career as a lawyer before taking on post-graduate studies in European and International Law at the same university. Merkies has worked for the institutions of the European Union as well as for various industries. Prior to becoming a Member of the European Parliament Merkies worked as a Project Manager for the Education, Audiovisual & Culture Executive Agency (EACEA) of the European Commission. From 2005 to 2006 she worked as an executive manager at the European Music Office, an international non-profit association bringing together professional organizations, associations and federations from the music sector within the European Union. From 2000 to 2004 she worked as a representative of professionals and companies in the Dutch film industry.
Document 7: Kamil Kalina: Kamil Kalina (born July 5, 1945 in Prague) is a Czech psychiatrist, university professor, a psychologist "addictologist", and politician of the Civic Democratic Party (ODS), and after the Velvet Revolution, was elected a Deputy chairman of the ODS and Member of the Federal Assembly for the Electoral District of Prague in 1992. In 1991 he co-founded the Foundation Filia which specializes in addictology. Since February 2007 he has worked as a National Drug Coordinator of the Office of Government. He has authored or co-authored numerous books and papers, amongst them are "Czech Health Care System: Delivery & Finance" (1998), "Terapeutická komunita: obecný model a jeho aplikace v léčbě závislostí" (2008) and "Základy klinické adiktologie" (2008).
Document 8: Languages of Namibia: Namibia, despite its scant population, is home to a wide diversity of languages, from multiple language families: Indo - European, Bantu, and the various Khoisan families. When Namibia was administered by South Africa, Afrikaans, German, and English enjoyed an equal status as official languages. Upon Namibian independence in 1990, English was enshrined as the nation's sole official language in the constitution of Namibia. German and Afrikaans were stigmatised as having colonial overtones, while the rising of Mandela's Youth League and the 1951 Defiance Campaign spread English among the masses as the language of the campaign against apartheid.
Document 9: Namibia: The dry lands of Namibia were inhabited since early times by San, Damara, and Namaqua, and since about the 14th century AD by immigrating Bantu who came with the Bantu expansion. Most of the territory became a German Imperial protectorate in 1884 and remained a German colony until the end of World War I. In 1920, the League of Nations mandated the country to South Africa, which imposed its laws and, from 1948, its apartheid policy. The port of Walvis Bay and the offshore Penguin Islands had been annexed by the Cape Colony under the British crown by 1878 and had become an integral part of the new Union of South Africa at its creation in 1910.
Document 10: Eleni Bakopanos: Bakopanos was a member of the Liberal Party of Canada in the House of Commons of Canada, representing the riding of Ahuntsic from 1997 to 2006, and Saint-Denis from 1993 to 1997 and is the first Greek-born woman to be elected to Parliament. Bakopanos has been an executive, and a policy adviser. Formerly Assistant Deputy Chairman of Committees of the Whole, and a former Parliamentary Secretary to the Minister of Justice and Attorney General of Canada (1997–1999). Bakopanos was named Parliamentary Secretary to the Minister of Social Development with special emphasis on Social Economy on July 20, 2004. Bakopanos has served as Chair of the Standing Committee on Citizenship and Immigration and as Vice-Chair of the Standing Committee on Canadian Heritage.
Document 11: Nooitgedacht Dam: Nooitgedacht Dam is an earth-fill type dam located on the Komati River in South Africa. It was established in 1962 and serves mainly for irrigation purposes as well as municipal and industrial use. The hazard potential of the dam has been ranked high (3).
Document 12: Ella Kalsbeek: Neeltje Adriana (Ella) Kalsbeek (born 5 January 1955 in Middelburg) is a former Dutch politician. She was a member of House of Representatives of the Netherlands for the Labour Party (Partij van de Arbeid, 1989–2001, 2002–2006). She was State Secretary of Justice under Wim Kok (2001–2001). Since 1 March 2007 she is president of the board of directors of Altra College, an institute for youth care and special education in Amsterdam.
Document 13: Namibia: Uprisings and demands by African leaders led the UN to assume direct responsibility over the territory. It recognised the South West Africa People's Organisation (SWAPO) as the official representative of the Namibian people in 1973. Namibia, however, remained under South African administration during this time as South-West Africa. Following internal violence, South Africa installed an interim administration in Namibia in 1985. Namibia obtained full independence from South Africa in 1990, with the exception of Walvis Bay and the Penguin Islands, which remained under South African control until 1994.
Document 14: Theewaterskloof Dam: Theewaterskloof Dam is an earth-fill type dam located on the Sonderend River near Villiersdorp, Western Cape, South Africa. Administratively it is located within Theewaterskloof Local Municipality. It was established in 1978 and is the largest dam in the Western Cape Water Supply System with a capacity of 480 million cubic metres, about 41% of the water storage capacity available to Cape Town, which has a population of over 4 million people. The dam mainly serves for municipal and industrial use as well as for irrigation purposes. The hazard potential of the dam has been ranked high (3).
Document 15: Namibia: South Africa occupied the colony in 1915 after defeating the German force during World War I and administered it from 1919 onward as a League of Nations mandate territory. Although the South African government desired to incorporate 'South-West Africa' into its territory, it never officially did so, although it was administered as the de facto 'fifth province', with the white minority having representation in the whites-only Parliament of South Africa, as well as electing their own local administration the SWA Legislative Assembly. The South African government also appointed the SWA administrator, who had extensive powers. Following the League's replacement by the United Nations in 1946, South Africa refused to surrender its earlier mandate to be replaced by a United Nations Trusteeship agreement, requiring closer international monitoring of the territory's administration (along with a definite independence schedule). The Herero Chief's Council submitted a number of petitions to the UN calling for it to grant Namibia independence during the 1950s. During the 1960s, when European powers granted independence to their colonies and trust territories in Africa, pressure mounted on South Africa to do so in Namibia. In 1966 the International Court of Justice dismissed a complaint brought by Ethiopia and Liberia against South Africa's continued presence in the territory, but the U.N. General Assembly subsequently revoked South Africa's mandate, while in 1971 the International Court of Justice issued an "advisory opinion" declaring South Africa's continued administration to be illegal.
ground_truth: 1946
sub_queries: Ella Kalsbeek >> place of birth Answer: Middelburg
Middelburg >> country Answer: South Africa
When did South Africa refuse to surrender Namibia? Answer: 1946