who were fighting the war where the 8 . 8 cm flak 18/36/37/41 was used ?
SELECT DISTINCT COUNT attr_open var_uri attr_close where brack_open dbr_8.8_cm_Flak_18/36/37/41 dbo_usedInWar var_x sep_dot var_x dbo_territory var_uri sep_dot var_x a dbo_MilitaryConflict brack_close