This is a file from the Wikimedia Commons. The description on its description page there is shown below.
Image File history File links Commons-logo. ...
Summary
SVG of the naval jack of the Netherlands made by User:David Newton. Colours altered by User:Denelson83. Uploaded to correct nomenclature mistake.
Licensing
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License".
The military of the Netherlands is composed of four branches, all of which carry the prefix royal: The Army, the regular, land based army branch. ... Royal Netherlands Navy Jack The Koninklijke Marine (Royal Netherlands Navy ) is the navy of the Netherlands. ... Logo of the Royal Netherlands Airforce First F-16 deliverd to the Dutch Royal Airforce The Royal Netherlands Air Force (Koninklijke Luchtmacht) is the aviation branch of the Netherlands defence forces. ... The Royal Netherlands Army (Koninklijke Landmacht) is the land forces element of the Military of the Netherlands. ... The Koninklijke Marechaussee (KMar) (Royal Constabulary in English) is one of the four military bodies of the Netherlands. ... The Flores class sloops, HNLMS Flores, Soemba and Johan Maurits van Nassau, were gunboats in the Royal Netherlands Navy during the second World War. ...