This is de entrance to the Metro station Oostplein. Here stood in May 1940 the barracks of the marines. Rotterdam and the marines are for always connected because of the fighting in May 1940, a fierce battle against the German invasion forces only to end because of the bombardment of Rotterdam destroying the inner old city. This is a piece of the main entrance to the barracks plus a stone dating from 1783. The marine corps date back to 1665 and are stationed in Rotterdam since 1869.