Together with the National Committee 4 and 5 May, Wikimedia Nederland started a cooperation regarding war monuments. The National Committee 4 and 5 May is a foundation set up by the government to organize the Remembrance of the Dead on 4 May and the Liberation Day on 5 May. The committee has also a database of many war monuments in the Netherlands and wants to cooperate with Wikipedia and Wikimedia Nederland to make the war monuments more visible for the public and having the information about the monuments easier to find. The committee gave Wikimedia Nederland a large part of the database to use it on Wikipedia. Likewise as been done with the rijksmonumenten with Wiki Loves Monuments, lists of all war monuments were created on Wikipedia with all the 3645 known monuments. After that, a lot of users have added pictures, links and more to the lists.
On 15 February 2013 the National Committee 4 and 5 May and Wikimedia Nederland organized a photo tour to make pictures to have the lists of war monuments filled with more photos. This photo tour was organized in the area where in World War II the Battle of Arnhem took place. Images of this photo tour can be seen at Commons:Category:Photo Tour War Monuments in Arnhem 2013.