Question: What organization is in charge of organizing international competitions and hosting the World Judo Championships?
About the article "Judo", section "Organizations".

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The international governing body for judo is the International Judo Federation (IJF), founded in 1951.
Members of the IJF include the African Judo Union (AJU), the Pan-American Judo Confederation (PJC), the Judo Union of Asia (JUA), the European Judo Union (EJU) and the Oceania Judo Union (OJU), each comprising a number of national judo associations.
The IJF is responsible for organising international competition and hosts the World Judo Championships and is involved in running the Olympic Judo events.
Judo is one of the most successful field of sport for Estonia.
Since 1996, Estonia has won several medals in major international competitions.
3 Olympic medals * 3 Bronze medals: 2000 and 2004.
4 World Judo Championships medals * 3 Silver medals: 1999, 2001, 2003 and bronze medal in 2003.
15 European Judo Championships medals.
Indrek Pertelson, Aleksei Budõlin and Martin Padar are the most famous Judo athletes in Estonia in the past years.  
The Fiji Sports Council is an organization in charge of organizing International tournaments for Fiji athletes.
It is also affiliated to FASANOC.
The organization is headed by its Chairman Tom Ricketts (Fiji politician)It is also one of the leading provider of quality sports & recreational facilities and programs at national, regional and international levels.
It was established in 1978 under the Fiji Sports Council Act and year later in 1979, it hosted the first South Pacific Games.
It was recently in charge of hosting the 2007 Netball World Championships which was to be held in Suva but due to the 2006 Military coup, the venue was shifted to New Zealand and Fiji lost out in hosting the biggest event of the year. 
The University of Regina Cougars and the University of Saskatchewan Huskies feature wrestling athletes who compete in Canadian Interuniversity Sport.
His Worship Pat Fiacco "Sugar Ray Fiacco", Mayor of Regina has held provincial and Canadian amateur boxing championships, such as the Canadas amateur bantam weight crown 1980.
Judo is practiced in many communities across the province.
The formal name of the non-profit organization is the Saskatchewan Kodokan Black Belt Association, but is more commonly known as Judo Saskatchewan.
Clubs in the province include:Ka-newonaskasehtew Judo Club, PunnichyJu-No-Ri Judo Club, WatrousLaRonge Judo ClubLloydminster Judo ClubMelfort Judo ClubKenshukan Judo Club, Prince AlbertMeadow Lake Judo ClubPense Judo ClubRegina YMCA Judo ClubSaskatoon YMCA Judo ClubSenshudokan Judo Club, ReginaSouth Corman Park Judo Club, SaskatoonSt.
Brieux Judo ClubStanley Mission Judo ClubSwift Current Judo ClubVibank Judo Club The organization holds several regional competitions each season, four provincial tournaments, a closed provincial championships and a one primary annual shiai (tournament) called the Sask Open.
Saskatchewan has produced two olympic athletes, Nancy Jewitt-Filteau and Frazer Will and has had several other olympic athletes train and coach in the province, including Sandra Greaves and Ewan Beaton. 
The World Judo Championships are the highest level of international judo competition, along with the Olympic judo competition.
The championships are held once every year (except the years when the Olympics take place) by the International Judo Federation, and qualified judoka compete in their respective categories as representatives of their home countries.
Team competitions have also been held since 1994.
The men's championships began in 1956, though the format and periodicity of the championships have changed overtime.
The 29th edition of the championships took place in Rio de Janeiro, Brazil in 2013.