regimental band
... that the regimental band of the U.S. Army's 369th Regiment (the "Harlem Hellfighters Band") is credited with introducing jazz to Europe during World War I?
... that the <b id="mwBig"><a href="./United_States_military_bands" id="mwBik" rel="mw:WikiLink" title="United States military bands">regimental band</a></b> of the <a class="mw-redirect" href="./U.S._Army" id="mwBio" rel="mw:WikiLink" title="U.S. Army">U.S. Army</a>'s <a href="./369th_Infantry_Regiment_(United_States)" id="mwBis" rel="mw:WikiLink" title="369th Infantry Regiment (United States)">369th Regiment</a> (the "Harlem Hellfighters Band") is credited with introducing jazz to Europe during World War I?