High Quality Content by WIKIPEDIA articles! The Agreement between the Republic of Indonesia and the Kingdom of the Netherlands Concerning West New Guinea (West Irian), also known as the New York Agreement, was a treaty signed between the Netherlands, Indonesia and the United Nations on the administration of West New Guinea. Signed at the United Nations Headquarters in New York on 15 August 1962, it ended a territorial dispute existing between the two countries since the Indonesian War of Independence in 1949.