41st Elite Corps
this clone trooper unit was one of the legions that made up the 9th Assault Corps, during the height of the Clone Wars. Led by Commander Gree, the 41st Elite was often dispatched to those worlds with indigenous, non-human species. The training of Commander Gree and his troops was targeted for the interaction with other races, and included information on various alien cultures. Note that Star Wars Insider, issue 84 claims that Commander Gree was a member of the 41st Elite Corps, but commanded Sarlacc Battalions A and B. Also note that this issue indicates that the 41st Elite was an Army Legion, not a full Corps.