As a result, it gained the title of Musique Particulière du Roi (Private Music Band of the King).

In the 20 year period between the two World Wars, the band gained an international reputation, as well as a domestic notability that it has never experienced before.

Under the baton of Arthur Prévost, it conducted an official tour of the United States in 1929, being received by President Herbert Hoover in the White House.

In early 1957, Simon Poulain went into retirement and on 11 February 1957, the Minister of National Defense appointed Lieutenant Karel Torfs to succeed him.

On 16 June 2007 François De Ridder, who had been the bandmaster for only 4 years, was killed in Zellik while carrying out an assignment as an volunteer firefighter in the city.