If 'He also made use of the already-established Third World Relief Agency (TWRA) headquartered in Vienna, whose branch office locations included Zagreb and Budapest.' is true, does it logically mean that 'The Third World Relief Agency had no branch offices.  ' also is?
He also made use of the already-established Third World Relief Agency (TWRA) headquartered in Vienna, whose branch office locations included Zagreb and Budapest.###The Third World Relief Agency had no branch offices.  