The Troop was formed in 1918. As the members of the Troop came primarily from the international school those wising to join came from many parts of the world. Under rules then in effect Troops could consist only of single nationalities. The dilemma was addressed to B-P and, after formation of the World Scout Bureau, the Troop was chartered directly by the Bureau creating the world's first "International" scout group. The Charter, signed personally by B-P, reads:

This is to certify that... "is duly registered with the Boy Scout International Bureau、London, and is authorised to accept and enroll scouts of mixed nationalities."

For the International Committee signed Robert Baden Powell

Over the years Scouts of nearly 50 nationalities have experienced scouting as members of the International Boy Scouts, Troop 1.