Question: What was the 2018 population of the country, that hosted the 1920 Summer Olympics, where the nation containing the organization that intervened with mediation for the governments, competed?

<P0-S0> Kingdom of Belgium Koninkrijk België (Dutch) Royaume de Belgique (French) Königreich Belgien (German) Flag Coat of arms Motto: ``Eendracht maakt macht ''(Dutch)`` L'union fait la force'' (French) ``Einigkeit macht stark ''(German)`` Unity makes Strength'' Anthem: ``La Brabançonne ''`` The Brabantian'' Location of Belgium (dark green) -- in Europe (green & dark grey) -- in the European Union (green) Capital and largest city Brussels 50 ° 51 ′ N 4 ° 21 ′ E ﻿ / ﻿ 50.850 ° N 4.350 ° E ﻿ / 50.850; 4.350 Official languages Dutch French German Ethnic groups see Demographics Religion (2015) 60.7% Christianity 32.0% No religion 5.2% Islam 2.1% Other religions Demonym Belgian Government Federal parliamentary constitutional monarchy Monarch Philippe Prime Minister Charles Michel Legislature Federal Parliament Upper house Senate Lower house Chamber of Representatives Independence (from the Netherlands) Declared 4 October 1830 Recognised 19 April 1839 Area Total 30,528 km (11,787 sq mi) (136th) Water (%) 6.4 Population 1 August 2018 census 11,420,163 (79th) Density 374.2 / km (969.2 / sq mi) (36th) GDP (PPP) 2018 estimate Total $550.664 billion (38th) Per capita $48,258 (20th) GDP (nominal) 2016 estimate Total $562.229 billion (23rd) Per capita $49,272 (17th) Gini (2011) 26.3 low HDI (2017) 0.916 very high 17th Currency Euro (€) (EUR) Time zone UTC + 1 (CET) Summer (DST) UTC + 2 (CEST) Driving side right Calling code + 32 ISO 3166 code BE Internet TLD. <P0-S1> be The flag's official proportions of 13: 15 are rarely seen; proportions of 2: 3 or similar are more common. <P0-S2> The Brussels region is the de facto capital, but the City of Brussels municipality is the de jure capital. <P0-S3> The. <P0-S4> eu domain is also used, as it is shared with other European Union member states. <SEP> <P1-S0> A large number of international institutions have their seats in Switzerland, in part because of its policy of neutrality. <P1-S1> Geneva is the birthplace of the Red Cross and Red Crescent Movement and the Geneva Conventions and, since 2006, hosts the United Nations Human Rights Council. <P1-S2> Even though Switzerland is one of the most recent countries to have joined the United Nations, the Palace of Nations in Geneva is the second biggest centre for the United Nations after New York, and Switzerland was a founding member and home to the League of Nations. <SEP> <P2-S0> the 2018 winter olympics, officially known as the xxiii olympic winter games (korean: 제 23 회동계올림픽, translit. <P2-S1> jeisipsamhoe donggye ollimpik), officially stylized and commonly known as pyeongchang 2018, is an international multi-sport event currently being held from 9 to 25 february 2018 in pyeongchang county, south korea, with the opening rounds for certain events held on the eve of the opening ceremony -- 8 february 2018. pyeongchang was elected as the host in july 2011, during the 123rd ioc session in durban, south africa. <P2-S2> it marks the first time south korea has hosted the winter olympics, and the second olympics in the country overall after the 1988 summer olympics in the nation's capital, seoul. <P2-S3> it also marks the third time east asia has hosted the winter games, after sapporo, japan (1972), and nagano, japan (1998), and the sixth overall olympic games held in east asia. <P2-S4> it is the first of three consecutive olympic games scheduled to be held in east asia, preceding tokyo 2020 (summer) and beijing 2022 (winter). <SEP> <P3-S0> There were several border conflicts between Colombia and Peru in the early part of the 20th century, and in 1922, their governments signed the Salomón-Lozano Treaty in an attempt to resolve them. <P3-S1> As part of this treaty, the border town of Leticia and its surrounding area was ceded from Peru to Colombia, giving Colombia access to the Amazon River. <P3-S2> On 1 September 1932, business leaders from Peruvian rubber and sugar industries who had lost land, as a result, organised an armed takeover of Leticia. <P3-S3> At first, the Peruvian government did not recognise the military takeover, but President of Peru Luis Sánchez Cerro decided to resist a Colombian re-occupation. <P3-S4> The Peruvian Army occupied Leticia, leading to an armed conflict between the two nations. <P3-S5> After months of diplomatic negotiations, the governments accepted mediation by the League of Nations, and their representatives presented their cases before the Council. <P3-S6> A provisional peace agreement, signed by both parties in May 1933, provided for the League to assume control of the disputed territory while bilateral negotiations proceeded. <P3-S7> In May 1934, a final peace agreement was signed, resulting in the return of Leticia to Colombia, a formal apology from Peru for the 1932 invasion, demilitarisation of the area around Leticia, free navigation on the Amazon and Putumayo Rivers, and a pledge of non-aggression. <SEP> <P4-S0> Switzerland competed at the 1920 Summer Olympics in Antwerp, Belgium. <P4-S1> 77 competitors, all men, took part in 45 events in 13 sports. <SEP> <P5-S0> roy d. schooley (april 13, 1880 – november 13, 1933) was a former hockey referee who later became the manager of both duquesne gardens, located in pittsburgh, pennsylvania, and the pittsburgh yellow jackets of the united states amateur hockey association. <P5-S1> in 1925, the yellow jackets hockey club, evolved into the pittsburgh pirates of the national hockey league. <P5-S2> on march 16, 1920 at the duquesne gardens, he helped found usa hockey, the governing body for amateur ice hockey in the united states. <P5-S3> that same year, he assembled the first u.s. olympic hockey team which won a silver medal at the 1920 summer olympics in antwerp, belgium and is credited with helping to foster the growth of hockey in the country.