Back in the the 1990s during one of the endless series of Balkan wars, I was a recruiter. And quite often I had to visit a doctor’s office that performed consultations on prospective recruits.
My drive to his office took me past the local Serbian Association Hall. And just down the road was the Croation Society Building.
Separated by about 300 yards.
You know. Just in small arms range.
I guess they held their weekly events on different nights.