In spring in 1990 a previous citizen of Retzin, who nowadays lives in Sassenberg, got in touch with the community of Löcknitz. As a result there was an active administration help for the new municipal administration of Löcknitz which lasted several years. After this formal cooperation mutual visits of members of the community administration and of clubs, associations followed.
Simultaneously absolvents of the schools in Löcknitz received the opportunity to get an apprenticeship in companies and administrations in Sassenberg.
The cooperation between the two towns shifted slightly more and more to the schools.
The DPG Löcknitz has maintained close contacts to Sassenberg since September 2006.
The first student`s exchange took place in spring 2005.Since then the pupils from Löcknitz and Sassenberg look forward to seeing each other on their annual meetings.