UB - 45 was assigned to the Navy 's Pola Flotilla ( German : Deutsche U-Halbflotille Pola ) .
UB - 45 is palis ' second U-boat command .
UB - 45 , Palis ' second U-boat command , was assigned to the Navy 's Pola Flotilla ( German : Deutsche U-Halbflotille Pola ) .