Can you transfer to an international office when working in public finance at a BB bank?

I’m a student interested in IB. I‘ve been reading a lot about public finance which really interests me. One of my biggest priorities for my future is that i‘d like to be at a bank and group that allows me to "work abroad" (i.e go to europe/hong kong for my associate years).

Is that possible with public finance since clients are regional. Do BB banks have public finance groups internationally?