It consists of a selection of specially trained marines of the Dutch Marine Corps , and it is part of the '' Maritime Special Operations Forces '' ( MARSOF ) , which is the maritime counterpart of the Dutch Army 's Korps Commandotroepen . MARSOF is able to operate in and outside of the Netherlands , with emphasis on maritime special operations . It currently consists of 3 SF units ; M-Squadron consist of teams of 6 operators , each team and each operator with their own specialty . Among those are diver and breach teams . Tasks are : On 22 February 1973 , the Dutch government officially created a specialist counter-terrorism unit in response to the Munich massacre , when 11 Israeli athletes were murdered by Palestine pro-Fatah militants . The government felt the urge of protecting the nation against such incidents in the future , and so members of the Dutch Marine Corps were selected for this special unit . Marines were chosen because , at that time , they were particularly notorious : Dutch marines are hardened , highly trained , professional soldiers . On July 1 , 2006 , a new government organ , '' Dienst Speciale Interventies '' ( DSI ) was founded . This is a joint operations centre for counter-terrorism actions in the Netherlands . Members of the UIM and special police units work together , and form a '' Unit Interventie '' , which is a joint task force of Defence and police personnel
Munich massacre
Munich massacre
Unit Interventie Mariniers