Thank you! The sound of my own echo asking Dio that same question was beginning to bore even me!
The grandson of this former WWII Ustase, Dzaferbeg Kulenovic, (whose name is also Dzafer), is "the President of the Islamic Cultural Center in Northbrook, Illinois (the oldest Bosniak mosque in North America)". When I looked up that Islamic Cultural Center in Northbrook Illinois", here's what I found -- The Supreme Islamic Council of America!
So following this from the beginning, the WWII Balkan Croatian Ustase -- both Catholic Croats and Bosnian Muslms -- escape into the diaspora post-war -- to Europe, the Middle East and America. Two generations later, their children and grandchildren work in concert with one another again. Collectively, they even hire the same PR firm to trash the Serbs. Croatia gets independence. The Bosnian and Albanian Muslims establish a beachhead in the Balkans and grow here in America.
Even Mohammed Sacirbey, the Bosnian Ambassador during the 1990's, was the son of a Muslim activist who together with Bosnian preisdent Alija Izetbovic was jailed for producing a journal called (in English) "Mujahaddin". But both Sacribey's father and Izetbegovic had been supporters of the fascist Croatian Ustase.
So it took two generations, but the WWII Croat Catholic, Bosnian and Albanian Muslim fascists, returned for an encore performance and no one saw the connection!
The Handzar were not Ustashe, were not part of the Croatian army, nor did they wear any Ustasha emblems.