In order to make its various sites about Belgian military heritage more attractive, the War Heritage Institute (WHI) modified its rates policy and introduces both new formulas and new rates.  

New formulas   

As of January 1, 2019, you can visit the various War Heritage Institute sites with a single multi-site ticket and/or a multi-site subscription. You can in that way visit six sites at attractive rates. More information here

New rates

As of January 1, 2019, new entrance rates to the various War Heritage Institute sites apply.  More information about the Royal Military Museum here