Complex sentence: Veterans who wish to obtain a copy of their Veterans Benefits Administration (VBA) claims file, can write directly to the VBA Regional Office handling their claim (s) or to one of the new "centralized mail processing centers".
Split into simpler sentences: Veterans who wish to obtain a copy of their Veterans Benefits Administration (VBA) claims file, can write directly to the VBA. Veterans might also want to send their request to one of the new "centralized mail processing centers".