20 : Treaties concluded in 1998|Treaties entered into force in 2001|Space treaties|1998 in Washington, D.C.|Treaties of Canada|Treaties of Japan|Treaties of Russia|Treaties of the United States|Treaties of Belgium|Treaties of Denmark|Treaties of France|Treaties of Germany|Treaties of Italy|Treaties of the Netherlands|Treaties of Norway|Treaties of Spain|Treaties of Sweden|Treaties of Switzerland|Treaties of the United Kingdom|Science treaties