what is the military conflict whose commanders are george mackenzie and george mackenzie ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_commander dbr_George_Mackenzie,_3rd_Earl_of_Cromartie sep_dot var_uri dbo_commander dbr_George_Mackenzie,_3rd_Earl_of_Cromartie sep_dot var_uri a dbo_MilitaryConflict brack_close