Japan's government has endorsed the nation's bid to host the 2018 or 2022 World Cup, vowing to co-operate in bringing the showcase tournament to the country.

Prime Minister Yukio Hatoyama's cabinet released a statement Tuesday announcing its approval for the bid and promised assistance in security, transportation and immigration, but stopped short of pledging fresh financial support.

The Japan Football Association said it will officially file its candidacy with FIFA by Friday.

Australia, England, Japan, Russia and the United States, plus joint bids from Spain-Portugal and Belgium-Netherlands, are competing to host in 2018 or 2022. Indonesia, Qatar and South Korea have bid only for 2022.

FIFA will decide on the hosts in December 2010.