 With the change of heart from the Austrians , Germany resolved to retain UB @-@ 7 and send her to the aid of the Turks . So , upon completion of her leak repairs , the boat was commissioned into the German Imperial Navy as SM UB @-@ 7 on 6 May under the command of Oberleutnant zur See Wilhelm Werner , a 26 @-@ year @-@ old native of Apola . At commissioning , the boat temporarily joined the Pola Flotilla ( German : Deutsche U @-@ Halbflotille Pola ) . 
