International Wadden Sea policy
The first Trilateral Governmental Conferences between Germany, Denmark and the Netherlands concerning the protection of the Wadden Sea was held in the Hague in 1978. This conference signified the official start of a cooperation, upon which the formal foundation is the Joint Declaration for the Protection of the Wadden Sea. This declaration was signed during the Third Wadden Sea Conference in Copenhagen in 1982. The ministers for nature and environmental issues get together once every three years. The purpose of these conferences is to gear each country's wadden policy to the others.

